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Finding the Fourth Proportional to 478,781.88, 718,094.68 and 226,061.88

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Solution

The fourth proportional to 478,781.88, 718,094.68 and 226,061.88 is: 339,055.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,781.88 : 718,094.68 = 226,061.88 : x
  2. Step 2: Convert to fraction form
    478,781.88/718,094.68 = 226,061.88/x
  3. Step 3: Cross multiply
    478,781.88x = 718,094.68 × 226,061.88
  4. Step 4: Simplify right side
    478,781.88x = 162,333,833,378.80
  5. Step 5: Solve for x
    x = 162,333,833,378.80/478,781.88
  6. Step 6: Final answer
    x = 339,055.93

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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.