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Finding the Fourth Proportional to 478,857.70, 718,282.22 and 183,369.70

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Solution

The fourth proportional to 478,857.70, 718,282.22 and 183,369.70 is: 275,052.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,857.70 : 718,282.22 = 183,369.70 : x
  2. Step 2: Convert to fraction form
    478,857.70/718,282.22 = 183,369.70/x
  3. Step 3: Cross multiply
    478,857.70x = 718,282.22 × 183,369.70
  4. Step 4: Simplify right side
    478,857.70x = 131,711,191,605.32
  5. Step 5: Solve for x
    x = 131,711,191,605.32/478,857.70
  6. Step 6: Final answer
    x = 275,052.89

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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.