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Finding the Fourth Proportional to 450,773.80, 676,052.70 and 260,823.40

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Solution

The fourth proportional to 450,773.80, 676,052.70 and 260,823.40 is: 391,172.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,773.80 : 676,052.70 = 260,823.40 : x
  2. Step 2: Convert to fraction form
    450,773.80/676,052.70 = 260,823.40/x
  3. Step 3: Cross multiply
    450,773.80x = 676,052.70 × 260,823.40
  4. Step 4: Simplify right side
    450,773.80x = 176,330,363,793.18
  5. Step 5: Solve for x
    x = 176,330,363,793.18/450,773.80
  6. Step 6: Final answer
    x = 391,172.61

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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.