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Finding the Fourth Proportional to 615,624.30, 849,575.80 and 386,191.24

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Solution

The fourth proportional to 615,624.30, 849,575.80 and 386,191.24 is: 532,952.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,624.30 : 849,575.80 = 386,191.24 : x
  2. Step 2: Convert to fraction form
    615,624.30/849,575.80 = 386,191.24/x
  3. Step 3: Cross multiply
    615,624.30x = 849,575.80 × 386,191.24
  4. Step 4: Simplify right side
    615,624.30x = 328,098,731,675.99
  5. Step 5: Solve for x
    x = 328,098,731,675.99/615,624.30
  6. Step 6: Final answer
    x = 532,952.86

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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.