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Finding the Fourth Proportional to 657,480.20, 986,220.30 and 341,896.10

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Solution

The fourth proportional to 657,480.20, 986,220.30 and 341,896.10 is: 512,844.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,480.20 : 986,220.30 = 341,896.10 : x
  2. Step 2: Convert to fraction form
    657,480.20/986,220.30 = 341,896.10/x
  3. Step 3: Cross multiply
    657,480.20x = 986,220.30 × 341,896.10
  4. Step 4: Simplify right side
    657,480.20x = 337,184,874,310.83
  5. Step 5: Solve for x
    x = 337,184,874,310.83/657,480.20
  6. Step 6: Final answer
    x = 512,844.15

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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.