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Finding the Fourth Proportional to 418,157.70, 577,069.46 and 236,869.58

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Solution

The fourth proportional to 418,157.70, 577,069.46 and 236,869.58 is: 326,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,157.70 : 577,069.46 = 236,869.58 : x
  2. Step 2: Convert to fraction form
    418,157.70/577,069.46 = 236,869.58/x
  3. Step 3: Cross multiply
    418,157.70x = 577,069.46 × 236,869.58
  4. Step 4: Simplify right side
    418,157.70x = 136,690,201,767.61
  5. Step 5: Solve for x
    x = 136,690,201,767.61/418,157.70
  6. Step 6: Final answer
    x = 326,886.73

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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.