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Finding the Fourth Proportional to 607,068.80, 910,603.20 and 292,140.80

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Solution

The fourth proportional to 607,068.80, 910,603.20 and 292,140.80 is: 438,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,068.80 : 910,603.20 = 292,140.80 : x
  2. Step 2: Convert to fraction form
    607,068.80/910,603.20 = 292,140.80/x
  3. Step 3: Cross multiply
    607,068.80x = 910,603.20 × 292,140.80
  4. Step 4: Simplify right side
    607,068.80x = 266,024,347,330.56
  5. Step 5: Solve for x
    x = 266,024,347,330.56/607,068.80
  6. Step 6: Final answer
    x = 438,211.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.