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Finding the Fourth Proportional to 457,466.90, 686,200.35 and 125,042.90

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Solution

The fourth proportional to 457,466.90, 686,200.35 and 125,042.90 is: 187,564.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,466.90 : 686,200.35 = 125,042.90 : x
  2. Step 2: Convert to fraction form
    457,466.90/686,200.35 = 125,042.90/x
  3. Step 3: Cross multiply
    457,466.90x = 686,200.35 × 125,042.90
  4. Step 4: Simplify right side
    457,466.90x = 85,804,481,745.02
  5. Step 5: Solve for x
    x = 85,804,481,745.02/457,466.90
  6. Step 6: Final answer
    x = 187,564.35

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Similar ratio
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1.5x scale

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.