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Finding the Fourth Proportional to 479,416,315.52, 719,156,359.74 and 168,486,326.48

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Solution

The fourth proportional to 479,416,315.52, 719,156,359.74 and 168,486,326.48 is: 252,740,695.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,416,315.52 : 719,156,359.74 = 168,486,326.48 : x
  2. Step 2: Convert to fraction form
    479,416,315.52/719,156,359.74 = 168,486,326.48/x
  3. Step 3: Cross multiply
    479,416,315.52x = 719,156,359.74 × 168,486,326.48
  4. Step 4: Simplify right side
    479,416,315.52x = 121,168,013,217,321,968
  5. Step 5: Solve for x
    x = 121,168,013,217,321,968/479,416,315.52
  6. Step 6: Final answer
    x = 252,740,695.91

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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.