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Finding the Fourth Proportional to 360,251.61, 497,207.69 and 243,912.30

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Solution

The fourth proportional to 360,251.61, 497,207.69 and 243,912.30 is: 336,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,251.61 : 497,207.69 = 243,912.30 : x
  2. Step 2: Convert to fraction form
    360,251.61/497,207.69 = 243,912.30/x
  3. Step 3: Cross multiply
    360,251.61x = 497,207.69 × 243,912.30
  4. Step 4: Simplify right side
    360,251.61x = 121,275,071,245.59
  5. Step 5: Solve for x
    x = 121,275,071,245.59/360,251.61
  6. Step 6: Final answer
    x = 336,639.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.