Home / 691,661.30-1,034,381.55-579,686.90

Finding the Fourth Proportional to 691,661.30, 1,034,381.55 and 579,686.90

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Solution

The fourth proportional to 691,661.30, 1,034,381.55 and 579,686.90 is: 866,923.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,661.30 : 1,034,381.55 = 579,686.90 : x
  2. Step 2: Convert to fraction form
    691,661.30/1,034,381.55 = 579,686.90/x
  3. Step 3: Cross multiply
    691,661.30x = 1,034,381.55 × 579,686.90
  4. Step 4: Simplify right side
    691,661.30x = 599,617,434,136.70
  5. Step 5: Solve for x
    x = 599,617,434,136.70/691,661.30
  6. Step 6: Final answer
    x = 866,923.50

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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.