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Finding the Fourth Proportional to 484,534.10, 726,830.62 and 147,599.42

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Solution

The fourth proportional to 484,534.10, 726,830.62 and 147,599.42 is: 221,408.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,534.10 : 726,830.62 = 147,599.42 : x
  2. Step 2: Convert to fraction form
    484,534.10/726,830.62 = 147,599.42/x
  3. Step 3: Cross multiply
    484,534.10x = 726,830.62 × 147,599.42
  4. Step 4: Simplify right side
    484,534.10x = 107,279,773,947.09
  5. Step 5: Solve for x
    x = 107,279,773,947.09/484,534.10
  6. Step 6: Final answer
    x = 221,408.10

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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.