Home / 861,104.12-1,188,488.16-570,202.61

Finding the Fourth Proportional to 861,104.12, 1,188,488.16 and 570,202.61

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Solution

The fourth proportional to 861,104.12, 1,188,488.16 and 570,202.61 is: 786,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,104.12 : 1,188,488.16 = 570,202.61 : x
  2. Step 2: Convert to fraction form
    861,104.12/1,188,488.16 = 570,202.61/x
  3. Step 3: Cross multiply
    861,104.12x = 1,188,488.16 × 570,202.61
  4. Step 4: Simplify right side
    861,104.12x = 677,679,050,786.10
  5. Step 5: Solve for x
    x = 677,679,050,786.10/861,104.12
  6. Step 6: Final answer
    x = 786,988.51

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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.