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Finding the Fourth Proportional to 468,177.42, 646,080.24 and 253,312.78

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Solution

The fourth proportional to 468,177.42, 646,080.24 and 253,312.78 is: 349,569.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,177.42 : 646,080.24 = 253,312.78 : x
  2. Step 2: Convert to fraction form
    468,177.42/646,080.24 = 253,312.78/x
  3. Step 3: Cross multiply
    468,177.42x = 646,080.24 × 253,312.78
  4. Step 4: Simplify right side
    468,177.42x = 163,660,381,697.47
  5. Step 5: Solve for x
    x = 163,660,381,697.47/468,177.42
  6. Step 6: Final answer
    x = 349,569.15

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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.