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Finding the Fourth Proportional to 516,015.25, 712,098.30 and 283,446.77

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Solution

The fourth proportional to 516,015.25, 712,098.30 and 283,446.77 is: 391,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,015.25 : 712,098.30 = 283,446.77 : x
  2. Step 2: Convert to fraction form
    516,015.25/712,098.30 = 283,446.77/x
  3. Step 3: Cross multiply
    516,015.25x = 712,098.30 × 283,446.77
  4. Step 4: Simplify right side
    516,015.25x = 201,841,961,640.26
  5. Step 5: Solve for x
    x = 201,841,961,640.26/516,015.25
  6. Step 6: Final answer
    x = 391,155.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.