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Finding the Fourth Proportional to 591,790.30, 887,685.45 and 260,014.30

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Solution

The fourth proportional to 591,790.30, 887,685.45 and 260,014.30 is: 390,021.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,790.30 : 887,685.45 = 260,014.30 : x
  2. Step 2: Convert to fraction form
    591,790.30/887,685.45 = 260,014.30/x
  3. Step 3: Cross multiply
    591,790.30x = 887,685.45 × 260,014.30
  4. Step 4: Simplify right side
    591,790.30x = 230,810,910,901.94
  5. Step 5: Solve for x
    x = 230,810,910,901.94/591,790.30
  6. Step 6: Final answer
    x = 390,021.45

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Half scale
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Double scale
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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.