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Finding the Fourth Proportional to 424,089.40, 636,134.10 and 366,352.60

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Solution

The fourth proportional to 424,089.40, 636,134.10 and 366,352.60 is: 549,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,089.40 : 636,134.10 = 366,352.60 : x
  2. Step 2: Convert to fraction form
    424,089.40/636,134.10 = 366,352.60/x
  3. Step 3: Cross multiply
    424,089.40x = 636,134.10 × 366,352.60
  4. Step 4: Simplify right side
    424,089.40x = 233,049,381,483.66
  5. Step 5: Solve for x
    x = 233,049,381,483.66/424,089.40
  6. Step 6: Final answer
    x = 549,528.90

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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.