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Finding the Fourth Proportional to 478,167.50, 659,871.09 and 263,307.04

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Solution

The fourth proportional to 478,167.50, 659,871.09 and 263,307.04 is: 363,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,167.50 : 659,871.09 = 263,307.04 : x
  2. Step 2: Convert to fraction form
    478,167.50/659,871.09 = 263,307.04/x
  3. Step 3: Cross multiply
    478,167.50x = 659,871.09 × 263,307.04
  4. Step 4: Simplify right side
    478,167.50x = 173,748,701,839.80
  5. Step 5: Solve for x
    x = 173,748,701,839.80/478,167.50
  6. Step 6: Final answer
    x = 363,363.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.