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Finding the Fourth Proportional to 482,466.78, 665,788.41 and 291,446.91

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Solution

The fourth proportional to 482,466.78, 665,788.41 and 291,446.91 is: 402,187.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,466.78 : 665,788.41 = 291,446.91 : x
  2. Step 2: Convert to fraction form
    482,466.78/665,788.41 = 291,446.91/x
  3. Step 3: Cross multiply
    482,466.78x = 665,788.41 × 291,446.91
  4. Step 4: Simplify right side
    482,466.78x = 194,041,974,808.31
  5. Step 5: Solve for x
    x = 194,041,974,808.31/482,466.78
  6. Step 6: Final answer
    x = 402,187.22

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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.