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Finding the Fourth Proportional to 451,201.70, 676,802.55 and 400,463.30

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Solution

The fourth proportional to 451,201.70, 676,802.55 and 400,463.30 is: 600,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,201.70 : 676,802.55 = 400,463.30 : x
  2. Step 2: Convert to fraction form
    451,201.70/676,802.55 = 400,463.30/x
  3. Step 3: Cross multiply
    451,201.70x = 676,802.55 × 400,463.30
  4. Step 4: Simplify right side
    451,201.70x = 271,034,582,621.42
  5. Step 5: Solve for x
    x = 271,034,582,621.42/451,201.70
  6. Step 6: Final answer
    x = 600,694.95

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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.