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Finding the Fourth Proportional to 480,466.89, 663,110.15 and 276,513.62

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Solution

The fourth proportional to 480,466.89, 663,110.15 and 276,513.62 is: 381,626.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,466.89 : 663,110.15 = 276,513.62 : x
  2. Step 2: Convert to fraction form
    480,466.89/663,110.15 = 276,513.62/x
  3. Step 3: Cross multiply
    480,466.89x = 663,110.15 × 276,513.62
  4. Step 4: Simplify right side
    480,466.89x = 183,358,983,337.12
  5. Step 5: Solve for x
    x = 183,358,983,337.12/480,466.89
  6. Step 6: Final answer
    x = 381,626.68

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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.