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Finding the Fourth Proportional to 323,612.04, 485,340.18 and 98,974.43

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Solution

The fourth proportional to 323,612.04, 485,340.18 and 98,974.43 is: 148,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,612.04 : 485,340.18 = 98,974.43 : x
  2. Step 2: Convert to fraction form
    323,612.04/485,340.18 = 98,974.43/x
  3. Step 3: Cross multiply
    323,612.04x = 485,340.18 × 98,974.43
  4. Step 4: Simplify right side
    323,612.04x = 48,036,265,244.90
  5. Step 5: Solve for x
    x = 48,036,265,244.90/323,612.04
  6. Step 6: Final answer
    x = 148,437.82

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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.