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Finding the Fourth Proportional to 574,423.20, 862,023.60 and 258,717.60

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Solution

The fourth proportional to 574,423.20, 862,023.60 and 258,717.60 is: 388,251.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,423.20 : 862,023.60 = 258,717.60 : x
  2. Step 2: Convert to fraction form
    574,423.20/862,023.60 = 258,717.60/x
  3. Step 3: Cross multiply
    574,423.20x = 862,023.60 × 258,717.60
  4. Step 4: Simplify right side
    574,423.20x = 223,020,676,935.36
  5. Step 5: Solve for x
    x = 223,020,676,935.36/574,423.20
  6. Step 6: Final answer
    x = 388,251.51

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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.