Home / 1,017,639.80-1,526,501.20-259,500.92

Finding the Fourth Proportional to 1,017,639.80, 1,526,501.20 and 259,500.92

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Solution

The fourth proportional to 1,017,639.80, 1,526,501.20 and 259,500.92 is: 389,261.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017,639.80 : 1,526,501.20 = 259,500.92 : x
  2. Step 2: Convert to fraction form
    1,017,639.80/1,526,501.20 = 259,500.92/x
  3. Step 3: Cross multiply
    1,017,639.80x = 1,526,501.20 × 259,500.92
  4. Step 4: Simplify right side
    1,017,639.80x = 396,128,465,781.10
  5. Step 5: Solve for x
    x = 396,128,465,781.10/1,017,639.80
  6. Step 6: Final answer
    x = 389,261.96

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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.