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Finding the Fourth Proportional to 657,081.80, 985,233.90 and 342,153.80

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Solution

The fourth proportional to 657,081.80, 985,233.90 and 342,153.80 is: 513,028.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,081.80 : 985,233.90 = 342,153.80 : x
  2. Step 2: Convert to fraction form
    657,081.80/985,233.90 = 342,153.80/x
  3. Step 3: Cross multiply
    657,081.80x = 985,233.90 × 342,153.80
  4. Step 4: Simplify right side
    657,081.80x = 337,101,522,773.82
  5. Step 5: Solve for x
    x = 337,101,522,773.82/657,081.80
  6. Step 6: Final answer
    x = 513,028.25

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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.