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Finding the Fourth Proportional to 574,026.70, 861,368.10 and 219,295.30

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Solution

The fourth proportional to 574,026.70, 861,368.10 and 219,295.30 is: 329,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,026.70 : 861,368.10 = 219,295.30 : x
  2. Step 2: Convert to fraction form
    574,026.70/861,368.10 = 219,295.30/x
  3. Step 3: Cross multiply
    574,026.70x = 861,368.10 × 219,295.30
  4. Step 4: Simplify right side
    574,026.70x = 188,893,975,899.93
  5. Step 5: Solve for x
    x = 188,893,975,899.93/574,026.70
  6. Step 6: Final answer
    x = 329,068.27

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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.