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Finding the Fourth Proportional to 502,071.52, 753,107.56 and 315,214.24

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Solution

The fourth proportional to 502,071.52, 753,107.56 and 315,214.24 is: 472,821.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,071.52 : 753,107.56 = 315,214.24 : x
  2. Step 2: Convert to fraction form
    502,071.52/753,107.56 = 315,214.24/x
  3. Step 3: Cross multiply
    502,071.52x = 753,107.56 × 315,214.24
  4. Step 4: Simplify right side
    502,071.52x = 237,390,227,163.65
  5. Step 5: Solve for x
    x = 237,390,227,163.65/502,071.52
  6. Step 6: Final answer
    x = 472,821.54

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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.