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Finding the Fourth Proportional to 424,083.40, 636,125.10 and 366,346.60

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Solution

The fourth proportional to 424,083.40, 636,125.10 and 366,346.60 is: 549,519.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,083.40 : 636,125.10 = 366,346.60 : x
  2. Step 2: Convert to fraction form
    424,083.40/636,125.10 = 366,346.60/x
  3. Step 3: Cross multiply
    424,083.40x = 636,125.10 × 366,346.60
  4. Step 4: Simplify right side
    424,083.40x = 233,042,267,559.66
  5. Step 5: Solve for x
    x = 233,042,267,559.66/424,083.40
  6. Step 6: Final answer
    x = 549,519.90

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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.