Home / 657,943.26-986,487.21-258,623.10

Finding the Fourth Proportional to 657,943.26, 986,487.21 and 258,623.10

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Solution

The fourth proportional to 657,943.26, 986,487.21 and 258,623.10 is: 387,766.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,943.26 : 986,487.21 = 258,623.10 : x
  2. Step 2: Convert to fraction form
    657,943.26/986,487.21 = 258,623.10/x
  3. Step 3: Cross multiply
    657,943.26x = 986,487.21 × 258,623.10
  4. Step 4: Simplify right side
    657,943.26x = 255,128,380,360.55
  5. Step 5: Solve for x
    x = 255,128,380,360.55/657,943.26
  6. Step 6: Final answer
    x = 387,766.54

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Double scale
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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.