Home / 579,742.10-869,613.15-159,017.30

Finding the Fourth Proportional to 579,742.10, 869,613.15 and 159,017.30

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Solution

The fourth proportional to 579,742.10, 869,613.15 and 159,017.30 is: 238,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,742.10 : 869,613.15 = 159,017.30 : x
  2. Step 2: Convert to fraction form
    579,742.10/869,613.15 = 159,017.30/x
  3. Step 3: Cross multiply
    579,742.10x = 869,613.15 × 159,017.30
  4. Step 4: Simplify right side
    579,742.10x = 138,283,535,157.50
  5. Step 5: Solve for x
    x = 138,283,535,157.50/579,742.10
  6. Step 6: Final answer
    x = 238,525.95

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Half scale
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Double scale
Find fourth proportional to 579,743.10, 869,614.65 and 159,018.30
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.