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Finding the Fourth Proportional to 666,027.10, 999,040.65 and 441,640.90

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Solution

The fourth proportional to 666,027.10, 999,040.65 and 441,640.90 is: 662,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,027.10 : 999,040.65 = 441,640.90 : x
  2. Step 2: Convert to fraction form
    666,027.10/999,040.65 = 441,640.90/x
  3. Step 3: Cross multiply
    666,027.10x = 999,040.65 × 441,640.90
  4. Step 4: Simplify right side
    666,027.10x = 441,217,211,802.59
  5. Step 5: Solve for x
    x = 441,217,211,802.59/666,027.10
  6. Step 6: Final answer
    x = 662,461.35

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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.