Home / 778,220.40-1,165,487.40-527,545.20

Finding the Fourth Proportional to 778,220.40, 1,165,487.40 and 527,545.20

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Solution

The fourth proportional to 778,220.40, 1,165,487.40 and 527,545.20 is: 790,068.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,220.40 : 1,165,487.40 = 527,545.20 : x
  2. Step 2: Convert to fraction form
    778,220.40/1,165,487.40 = 527,545.20/x
  3. Step 3: Cross multiply
    778,220.40x = 1,165,487.40 × 527,545.20
  4. Step 4: Simplify right side
    778,220.40x = 614,847,283,530.48
  5. Step 5: Solve for x
    x = 614,847,283,530.48/778,220.40
  6. Step 6: Final answer
    x = 790,068.32

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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.