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Finding the Fourth Proportional to 410,381.88, 615,789.52 and 291,208.88

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Solution

The fourth proportional to 410,381.88, 615,789.52 and 291,208.88 is: 436,967.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,381.88 : 615,789.52 = 291,208.88 : x
  2. Step 2: Convert to fraction form
    410,381.88/615,789.52 = 291,208.88/x
  3. Step 3: Cross multiply
    410,381.88x = 615,789.52 × 291,208.88
  4. Step 4: Simplify right side
    410,381.88x = 179,323,376,434.94
  5. Step 5: Solve for x
    x = 179,323,376,434.94/410,381.88
  6. Step 6: Final answer
    x = 436,967.09

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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.