Home / 642,242.27-885,454.16-552,561.59

Finding the Fourth Proportional to 642,242.27, 885,454.16 and 552,561.59

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Solution

The fourth proportional to 642,242.27, 885,454.16 and 552,561.59 is: 761,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,242.27 : 885,454.16 = 552,561.59 : x
  2. Step 2: Convert to fraction form
    642,242.27/885,454.16 = 552,561.59/x
  3. Step 3: Cross multiply
    642,242.27x = 885,454.16 × 552,561.59
  4. Step 4: Simplify right side
    642,242.27x = 489,267,957,972.54
  5. Step 5: Solve for x
    x = 489,267,957,972.54/642,242.27
  6. Step 6: Final answer
    x = 761,812.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.