Home / 638,572.31-885,033.64-626,614.89

Finding the Fourth Proportional to 638,572.31, 885,033.64 and 626,614.89

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Solution

The fourth proportional to 638,572.31, 885,033.64 and 626,614.89 is: 868,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,572.31 : 885,033.64 = 626,614.89 : x
  2. Step 2: Convert to fraction form
    638,572.31/885,033.64 = 626,614.89/x
  3. Step 3: Cross multiply
    638,572.31x = 885,033.64 × 626,614.89
  4. Step 4: Simplify right side
    638,572.31x = 554,575,254,439.29
  5. Step 5: Solve for x
    x = 554,575,254,439.29/638,572.31
  6. Step 6: Final answer
    x = 868,461.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.