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Finding the Fourth Proportional to 434,562.20, 651,843.30 and 247,938.20

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Solution

The fourth proportional to 434,562.20, 651,843.30 and 247,938.20 is: 371,907.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,562.20 : 651,843.30 = 247,938.20 : x
  2. Step 2: Convert to fraction form
    434,562.20/651,843.30 = 247,938.20/x
  3. Step 3: Cross multiply
    434,562.20x = 651,843.30 × 247,938.20
  4. Step 4: Simplify right side
    434,562.20x = 161,616,854,484.06
  5. Step 5: Solve for x
    x = 161,616,854,484.06/434,562.20
  6. Step 6: Final answer
    x = 371,907.30

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Similar ratio
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1.5x scale

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.