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Finding the Fourth Proportional to 493,416.56, 740,151.74 and 156,432.83

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Solution

The fourth proportional to 493,416.56, 740,151.74 and 156,432.83 is: 234,657.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,416.56 : 740,151.74 = 156,432.83 : x
  2. Step 2: Convert to fraction form
    493,416.56/740,151.74 = 156,432.83/x
  3. Step 3: Cross multiply
    493,416.56x = 740,151.74 × 156,432.83
  4. Step 4: Simplify right side
    493,416.56x = 115,784,031,708.71
  5. Step 5: Solve for x
    x = 115,784,031,708.71/493,416.56
  6. Step 6: Final answer
    x = 234,657.78

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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.