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Finding the Fourth Proportional to 484,598.45, 726,897.50 and 129,603.25

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Solution

The fourth proportional to 484,598.45, 726,897.50 and 129,603.25 is: 194,404.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,598.45 : 726,897.50 = 129,603.25 : x
  2. Step 2: Convert to fraction form
    484,598.45/726,897.50 = 129,603.25/x
  3. Step 3: Cross multiply
    484,598.45x = 726,897.50 × 129,603.25
  4. Step 4: Simplify right side
    484,598.45x = 94,208,278,416.88
  5. Step 5: Solve for x
    x = 94,208,278,416.88/484,598.45
  6. Step 6: Final answer
    x = 194,404.83

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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.