Home / 283,779.48-391,618.56-156,459.62

Finding the Fourth Proportional to 283,779.48, 391,618.56 and 156,459.62

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Solution

The fourth proportional to 283,779.48, 391,618.56 and 156,459.62 is: 215,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,779.48 : 391,618.56 = 156,459.62 : x
  2. Step 2: Convert to fraction form
    283,779.48/391,618.56 = 156,459.62/x
  3. Step 3: Cross multiply
    283,779.48x = 391,618.56 × 156,459.62
  4. Step 4: Simplify right side
    283,779.48x = 61,272,491,082.55
  5. Step 5: Solve for x
    x = 61,272,491,082.55/283,779.48
  6. Step 6: Final answer
    x = 215,915.86

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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.