Home / 859,180.10-1,288,770.15-439,276.10

Finding the Fourth Proportional to 859,180.10, 1,288,770.15 and 439,276.10

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Solution

The fourth proportional to 859,180.10, 1,288,770.15 and 439,276.10 is: 658,914.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,180.10 : 1,288,770.15 = 439,276.10 : x
  2. Step 2: Convert to fraction form
    859,180.10/1,288,770.15 = 439,276.10/x
  3. Step 3: Cross multiply
    859,180.10x = 1,288,770.15 × 439,276.10
  4. Step 4: Simplify right side
    859,180.10x = 566,125,925,288.42
  5. Step 5: Solve for x
    x = 566,125,925,288.42/859,180.10
  6. Step 6: Final answer
    x = 658,914.15

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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.