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Finding the Fourth Proportional to 478,463.19, 717,767.40 and 162,846.30

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Solution

The fourth proportional to 478,463.19, 717,767.40 and 162,846.30 is: 244,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,463.19 : 717,767.40 = 162,846.30 : x
  2. Step 2: Convert to fraction form
    478,463.19/717,767.40 = 162,846.30/x
  3. Step 3: Cross multiply
    478,463.19x = 717,767.40 × 162,846.30
  4. Step 4: Simplify right side
    478,463.19x = 116,885,765,350.62
  5. Step 5: Solve for x
    x = 116,885,765,350.62/478,463.19
  6. Step 6: Final answer
    x = 244,294.16

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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.