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Finding the Fourth Proportional to 319,608.52, 479,065.98 and 157,614.76

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Solution

The fourth proportional to 319,608.52, 479,065.98 and 157,614.76 is: 236,251.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,608.52 : 479,065.98 = 157,614.76 : x
  2. Step 2: Convert to fraction form
    319,608.52/479,065.98 = 157,614.76/x
  3. Step 3: Cross multiply
    319,608.52x = 479,065.98 × 157,614.76
  4. Step 4: Simplify right side
    319,608.52x = 75,507,869,461.86
  5. Step 5: Solve for x
    x = 75,507,869,461.86/319,608.52
  6. Step 6: Final answer
    x = 236,251.12

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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.