Home / 1,186,230.20-1,779,344.69-287,671.77

Finding the Fourth Proportional to 1,186,230.20, 1,779,344.69 and 287,671.77

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Solution

The fourth proportional to 1,186,230.20, 1,779,344.69 and 287,671.77 is: 431,507.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,230.20 : 1,779,344.69 = 287,671.77 : x
  2. Step 2: Convert to fraction form
    1,186,230.20/1,779,344.69 = 287,671.77/x
  3. Step 3: Cross multiply
    1,186,230.20x = 1,779,344.69 × 287,671.77
  4. Step 4: Simplify right side
    1,186,230.20x = 511,867,234,974.04
  5. Step 5: Solve for x
    x = 511,867,234,974.04/1,186,230.20
  6. Step 6: Final answer
    x = 431,507.51

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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.