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Finding the Fourth Proportional to 495,908.40, 743,862.60 and 474,913.20

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Solution

The fourth proportional to 495,908.40, 743,862.60 and 474,913.20 is: 712,369.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,908.40 : 743,862.60 = 474,913.20 : x
  2. Step 2: Convert to fraction form
    495,908.40/743,862.60 = 474,913.20/x
  3. Step 3: Cross multiply
    495,908.40x = 743,862.60 × 474,913.20
  4. Step 4: Simplify right side
    495,908.40x = 353,270,167,726.32
  5. Step 5: Solve for x
    x = 353,270,167,726.32/495,908.40
  6. Step 6: Final answer
    x = 712,369.80

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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.