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Finding the Fourth Proportional to 316,757.64, 436,924.17 and 207,869.04

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Solution

The fourth proportional to 316,757.64, 436,924.17 and 207,869.04 is: 286,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,757.64 : 436,924.17 = 207,869.04 : x
  2. Step 2: Convert to fraction form
    316,757.64/436,924.17 = 207,869.04/x
  3. Step 3: Cross multiply
    316,757.64x = 436,924.17 × 207,869.04
  4. Step 4: Simplify right side
    316,757.64x = 90,823,007,770.70
  5. Step 5: Solve for x
    x = 90,823,007,770.70/316,757.64
  6. Step 6: Final answer
    x = 286,727.13

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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.