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Finding the Fourth Proportional to 572,470.24, 858,767.63 and 212,598.87

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Solution

The fourth proportional to 572,470.24, 858,767.63 and 212,598.87 is: 318,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,470.24 : 858,767.63 = 212,598.87 : x
  2. Step 2: Convert to fraction form
    572,470.24/858,767.63 = 212,598.87/x
  3. Step 3: Cross multiply
    572,470.24x = 858,767.63 × 212,598.87
  4. Step 4: Simplify right side
    572,470.24x = 182,573,027,730.58
  5. Step 5: Solve for x
    x = 182,573,027,730.58/572,470.24
  6. Step 6: Final answer
    x = 318,921.43

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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.