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Finding the Fourth Proportional to 372,005.30, 556,841.55 and 267,029.30

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Solution

The fourth proportional to 372,005.30, 556,841.55 and 267,029.30 is: 399,706.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,005.30 : 556,841.55 = 267,029.30 : x
  2. Step 2: Convert to fraction form
    372,005.30/556,841.55 = 267,029.30/x
  3. Step 3: Cross multiply
    372,005.30x = 556,841.55 × 267,029.30
  4. Step 4: Simplify right side
    372,005.30x = 148,693,009,307.42
  5. Step 5: Solve for x
    x = 148,693,009,307.42/372,005.30
  6. Step 6: Final answer
    x = 399,706.70

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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.