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Finding the Fourth Proportional to 657,520.88, 986,182.68 and 208,183.50

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Solution

The fourth proportional to 657,520.88, 986,182.68 and 208,183.50 is: 312,244.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,520.88 : 986,182.68 = 208,183.50 : x
  2. Step 2: Convert to fraction form
    657,520.88/986,182.68 = 208,183.50/x
  3. Step 3: Cross multiply
    657,520.88x = 986,182.68 × 208,183.50
  4. Step 4: Simplify right side
    657,520.88x = 205,306,961,961.78
  5. Step 5: Solve for x
    x = 205,306,961,961.78/657,520.88
  6. Step 6: Final answer
    x = 312,244.02

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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.