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Finding the Fourth Proportional to 555,446.64, 766,091.10 and 383,652.11

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Solution

The fourth proportional to 555,446.64, 766,091.10 and 383,652.11 is: 529,146.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,446.64 : 766,091.10 = 383,652.11 : x
  2. Step 2: Convert to fraction form
    555,446.64/766,091.10 = 383,652.11/x
  3. Step 3: Cross multiply
    555,446.64x = 766,091.10 × 383,652.11
  4. Step 4: Simplify right side
    555,446.64x = 293,912,463,136.77
  5. Step 5: Solve for x
    x = 293,912,463,136.77/555,446.64
  6. Step 6: Final answer
    x = 529,146.17

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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.