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Finding the Fourth Proportional to 586,543.60, 879,232.20 and 270,449.20

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Solution

The fourth proportional to 586,543.60, 879,232.20 and 270,449.20 is: 405,404.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,543.60 : 879,232.20 = 270,449.20 : x
  2. Step 2: Convert to fraction form
    586,543.60/879,232.20 = 270,449.20/x
  3. Step 3: Cross multiply
    586,543.60x = 879,232.20 × 270,449.20
  4. Step 4: Simplify right side
    586,543.60x = 237,787,645,104.24
  5. Step 5: Solve for x
    x = 237,787,645,104.24/586,543.60
  6. Step 6: Final answer
    x = 405,404.89

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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.