Home / 914,387.27-1,261,841.11-506,487.78

Finding the Fourth Proportional to 914,387.27, 1,261,841.11 and 506,487.78

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Solution

The fourth proportional to 914,387.27, 1,261,841.11 and 506,487.78 is: 698,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,387.27 : 1,261,841.11 = 506,487.78 : x
  2. Step 2: Convert to fraction form
    914,387.27/1,261,841.11 = 506,487.78/x
  3. Step 3: Cross multiply
    914,387.27x = 1,261,841.11 × 506,487.78
  4. Step 4: Simplify right side
    914,387.27x = 639,107,101,250.42
  5. Step 5: Solve for x
    x = 639,107,101,250.42/914,387.27
  6. Step 6: Final answer
    x = 698,945.75

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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.