Home / 925,781.13-1,277,517.65-517,812.21

Finding the Fourth Proportional to 925,781.13, 1,277,517.65 and 517,812.21

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Solution

The fourth proportional to 925,781.13, 1,277,517.65 and 517,812.21 is: 714,547.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,781.13 : 1,277,517.65 = 517,812.21 : x
  2. Step 2: Convert to fraction form
    925,781.13/1,277,517.65 = 517,812.21/x
  3. Step 3: Cross multiply
    925,781.13x = 1,277,517.65 × 517,812.21
  4. Step 4: Simplify right side
    925,781.13x = 661,514,235,071.45
  5. Step 5: Solve for x
    x = 661,514,235,071.45/925,781.13
  6. Step 6: Final answer
    x = 714,547.11

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Double scale
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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.