Home / 859,165.20-1,185,575.40-519,613.20

Finding the Fourth Proportional to 859,165.20, 1,185,575.40 and 519,613.20

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Solution

The fourth proportional to 859,165.20, 1,185,575.40 and 519,613.20 is: 717,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,165.20 : 1,185,575.40 = 519,613.20 : x
  2. Step 2: Convert to fraction form
    859,165.20/1,185,575.40 = 519,613.20/x
  3. Step 3: Cross multiply
    859,165.20x = 1,185,575.40 × 519,613.20
  4. Step 4: Simplify right side
    859,165.20x = 616,040,627,435.28
  5. Step 5: Solve for x
    x = 616,040,627,435.28/859,165.20
  6. Step 6: Final answer
    x = 717,022.32

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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.