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Finding the Fourth Proportional to 434,562.10, 651,843.15 and 314,811.70

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Solution

The fourth proportional to 434,562.10, 651,843.15 and 314,811.70 is: 472,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,562.10 : 651,843.15 = 314,811.70 : x
  2. Step 2: Convert to fraction form
    434,562.10/651,843.15 = 314,811.70/x
  3. Step 3: Cross multiply
    434,562.10x = 651,843.15 × 314,811.70
  4. Step 4: Simplify right side
    434,562.10x = 205,207,850,184.86
  5. Step 5: Solve for x
    x = 205,207,850,184.86/434,562.10
  6. Step 6: Final answer
    x = 472,217.55

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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.