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Finding the Fourth Proportional to 657,700.92, 986,579.10 and 208,411.92

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Solution

The fourth proportional to 657,700.92, 986,579.10 and 208,411.92 is: 312,626.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,700.92 : 986,579.10 = 208,411.92 : x
  2. Step 2: Convert to fraction form
    657,700.92/986,579.10 = 208,411.92/x
  3. Step 3: Cross multiply
    657,700.92x = 986,579.10 × 208,411.92
  4. Step 4: Simplify right side
    657,700.92x = 205,614,844,462.87
  5. Step 5: Solve for x
    x = 205,614,844,462.87/657,700.92
  6. Step 6: Final answer
    x = 312,626.66

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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.