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Finding the Fourth Proportional to 480,762.57, 663,472.42 and 276,808.42

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Solution

The fourth proportional to 480,762.57, 663,472.42 and 276,808.42 is: 382,007.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,762.57 : 663,472.42 = 276,808.42 : x
  2. Step 2: Convert to fraction form
    480,762.57/663,472.42 = 276,808.42/x
  3. Step 3: Cross multiply
    480,762.57x = 663,472.42 × 276,808.42
  4. Step 4: Simplify right side
    480,762.57x = 183,654,752,431.10
  5. Step 5: Solve for x
    x = 183,654,752,431.10/480,762.57
  6. Step 6: Final answer
    x = 382,007.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.