Home / 525,985.11-725,862.78-284,267.12

Finding the Fourth Proportional to 525,985.11, 725,862.78 and 284,267.12

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Solution

The fourth proportional to 525,985.11, 725,862.78 and 284,267.12 is: 392,290.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,985.11 : 725,862.78 = 284,267.12 : x
  2. Step 2: Convert to fraction form
    525,985.11/725,862.78 = 284,267.12/x
  3. Step 3: Cross multiply
    525,985.11x = 725,862.78 × 284,267.12
  4. Step 4: Simplify right side
    525,985.11x = 206,338,918,356.48
  5. Step 5: Solve for x
    x = 206,338,918,356.48/525,985.11
  6. Step 6: Final answer
    x = 392,290.42

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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.