Home / 691,660.80-1,034,380.80-579,686.40

Finding the Fourth Proportional to 691,660.80, 1,034,380.80 and 579,686.40

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Solution

The fourth proportional to 691,660.80, 1,034,380.80 and 579,686.40 is: 866,922.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,660.80 : 1,034,380.80 = 579,686.40 : x
  2. Step 2: Convert to fraction form
    691,660.80/1,034,380.80 = 579,686.40/x
  3. Step 3: Cross multiply
    691,660.80x = 1,034,380.80 × 579,686.40
  4. Step 4: Simplify right side
    691,660.80x = 599,616,482,181.12
  5. Step 5: Solve for x
    x = 599,616,482,181.12/691,660.80
  6. Step 6: Final answer
    x = 866,922.75

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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.