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Finding the Fourth Proportional to 478,622.70, 717,714.54 and 162,951.12

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Solution

The fourth proportional to 478,622.70, 717,714.54 and 162,951.12 is: 244,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,622.70 : 717,714.54 = 162,951.12 : x
  2. Step 2: Convert to fraction form
    478,622.70/717,714.54 = 162,951.12/x
  3. Step 3: Cross multiply
    478,622.70x = 717,714.54 × 162,951.12
  4. Step 4: Simplify right side
    478,622.70x = 116,952,388,133.29
  5. Step 5: Solve for x
    x = 116,952,388,133.29/478,622.70
  6. Step 6: Final answer
    x = 244,351.95

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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.