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Finding the Fourth Proportional to 346,074.30, 517,959.45 and 251,034.30

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Solution

The fourth proportional to 346,074.30, 517,959.45 and 251,034.30 is: 375,715.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,074.30 : 517,959.45 = 251,034.30 : x
  2. Step 2: Convert to fraction form
    346,074.30/517,959.45 = 251,034.30/x
  3. Step 3: Cross multiply
    346,074.30x = 517,959.45 × 251,034.30
  4. Step 4: Simplify right side
    346,074.30x = 130,025,587,959.14
  5. Step 5: Solve for x
    x = 130,025,587,959.14/346,074.30
  6. Step 6: Final answer
    x = 375,715.82

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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.