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Finding the Fourth Proportional to 574,743.40, 862,503.90 and 322,023.40

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Solution

The fourth proportional to 574,743.40, 862,503.90 and 322,023.40 is: 483,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,743.40 : 862,503.90 = 322,023.40 : x
  2. Step 2: Convert to fraction form
    574,743.40/862,503.90 = 322,023.40/x
  3. Step 3: Cross multiply
    574,743.40x = 862,503.90 × 322,023.40
  4. Step 4: Simplify right side
    574,743.40x = 277,746,438,391.26
  5. Step 5: Solve for x
    x = 277,746,438,391.26/574,743.40
  6. Step 6: Final answer
    x = 483,252.94

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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.