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Finding the Fourth Proportional to 502,239.40, 753,359.10 and 169,815.40

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Solution

The fourth proportional to 502,239.40, 753,359.10 and 169,815.40 is: 254,723.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,239.40 : 753,359.10 = 169,815.40 : x
  2. Step 2: Convert to fraction form
    502,239.40/753,359.10 = 169,815.40/x
  3. Step 3: Cross multiply
    502,239.40x = 753,359.10 × 169,815.40
  4. Step 4: Simplify right side
    502,239.40x = 127,931,976,910.14
  5. Step 5: Solve for x
    x = 127,931,976,910.14/502,239.40
  6. Step 6: Final answer
    x = 254,723.10

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Similar ratio
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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.