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Finding the Fourth Proportional to 468,857.16, 646,597.65 and 307,650.96

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Solution

The fourth proportional to 468,857.16, 646,597.65 and 307,650.96 is: 424,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,857.16 : 646,597.65 = 307,650.96 : x
  2. Step 2: Convert to fraction form
    468,857.16/646,597.65 = 307,650.96/x
  3. Step 3: Cross multiply
    468,857.16x = 646,597.65 × 307,650.96
  4. Step 4: Simplify right side
    468,857.16x = 198,926,387,756.24
  5. Step 5: Solve for x
    x = 198,926,387,756.24/468,857.16
  6. Step 6: Final answer
    x = 424,279.30

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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.