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Finding the Fourth Proportional to 481,253.40, 722,949.30 and 402,521.40

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Solution

The fourth proportional to 481,253.40, 722,949.30 and 402,521.40 is: 604,676.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,253.40 : 722,949.30 = 402,521.40 : x
  2. Step 2: Convert to fraction form
    481,253.40/722,949.30 = 402,521.40/x
  3. Step 3: Cross multiply
    481,253.40x = 722,949.30 × 402,521.40
  4. Step 4: Simplify right side
    481,253.40x = 291,002,564,365.02
  5. Step 5: Solve for x
    x = 291,002,564,365.02/481,253.40
  6. Step 6: Final answer
    x = 604,676.38

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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.