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Finding the Fourth Proportional to 625,221.14, 862,329.08 and 538,154.41

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Solution

The fourth proportional to 625,221.14, 862,329.08 and 538,154.41 is: 742,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,221.14 : 862,329.08 = 538,154.41 : x
  2. Step 2: Convert to fraction form
    625,221.14/862,329.08 = 538,154.41/x
  3. Step 3: Cross multiply
    625,221.14x = 862,329.08 × 538,154.41
  4. Step 4: Simplify right side
    625,221.14x = 464,066,190,270.83
  5. Step 5: Solve for x
    x = 464,066,190,270.83/625,221.14
  6. Step 6: Final answer
    x = 742,243.29

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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.