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Finding the Fourth Proportional to 476,057.78, 656,959.71 and 272,113.08

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Solution

The fourth proportional to 476,057.78, 656,959.71 and 272,113.08 is: 375,516.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,057.78 : 656,959.71 = 272,113.08 : x
  2. Step 2: Convert to fraction form
    476,057.78/656,959.71 = 272,113.08/x
  3. Step 3: Cross multiply
    476,057.78x = 656,959.71 × 272,113.08
  4. Step 4: Simplify right side
    476,057.78x = 178,767,330,124.01
  5. Step 5: Solve for x
    x = 178,767,330,124.01/476,057.78
  6. Step 6: Final answer
    x = 375,516.04

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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.