Home / 572,256.90-858,385.35-172,959.30

Finding the Fourth Proportional to 572,256.90, 858,385.35 and 172,959.30

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Solution

The fourth proportional to 572,256.90, 858,385.35 and 172,959.30 is: 259,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,256.90 : 858,385.35 = 172,959.30 : x
  2. Step 2: Convert to fraction form
    572,256.90/858,385.35 = 172,959.30/x
  3. Step 3: Cross multiply
    572,256.90x = 858,385.35 × 172,959.30
  4. Step 4: Simplify right side
    572,256.90x = 148,465,729,266.26
  5. Step 5: Solve for x
    x = 148,465,729,266.26/572,256.90
  6. Step 6: Final answer
    x = 259,438.95

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Double scale
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Similar ratio
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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.