Home / 765,785.34-1,148,678.28-344,569.14

Finding the Fourth Proportional to 765,785.34, 1,148,678.28 and 344,569.14

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Solution

The fourth proportional to 765,785.34, 1,148,678.28 and 344,569.14 is: 516,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,785.34 : 1,148,678.28 = 344,569.14 : x
  2. Step 2: Convert to fraction form
    765,785.34/1,148,678.28 = 344,569.14/x
  3. Step 3: Cross multiply
    765,785.34x = 1,148,678.28 × 344,569.14
  4. Step 4: Simplify right side
    765,785.34x = 395,799,087,076.28
  5. Step 5: Solve for x
    x = 395,799,087,076.28/765,785.34
  6. Step 6: Final answer
    x = 516,853.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.