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Finding the Fourth Proportional to 887,886,827.52, 1,225,286,443.44 and 491,437,352.76

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Solution

The fourth proportional to 887,886,827.52, 1,225,286,443.44 and 491,437,352.76 is: 678,184,997.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,886,827.52 : 1,225,286,443.44 = 491,437,352.76 : x
  2. Step 2: Convert to fraction form
    887,886,827.52/1,225,286,443.44 = 491,437,352.76/x
  3. Step 3: Cross multiply
    887,886,827.52x = 1,225,286,443.44 × 491,437,352.76
  4. Step 4: Simplify right side
    887,886,827.52x = 602,151,526,136,869,120
  5. Step 5: Solve for x
    x = 602,151,526,136,869,120/887,886,827.52
  6. Step 6: Final answer
    x = 678,184,997.76

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Half scale
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Double scale
Find fourth proportional to 887,886,828.52, 1,225,286,444.82 and 491,437,353.76
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.