Home / 782,125.40-1,169,688.90-656,154.20

Finding the Fourth Proportional to 782,125.40, 1,169,688.90 and 656,154.20

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Solution

The fourth proportional to 782,125.40, 1,169,688.90 and 656,154.20 is: 981,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,125.40 : 1,169,688.90 = 656,154.20 : x
  2. Step 2: Convert to fraction form
    782,125.40/1,169,688.90 = 656,154.20/x
  3. Step 3: Cross multiply
    782,125.40x = 1,169,688.90 × 656,154.20
  4. Step 4: Simplify right side
    782,125.40x = 767,496,284,428.38
  5. Step 5: Solve for x
    x = 767,496,284,428.38/782,125.40
  6. Step 6: Final answer
    x = 981,295.69

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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.