Home / 806,115.20-1,207,423.20-666,147.20

Finding the Fourth Proportional to 806,115.20, 1,207,423.20 and 666,147.20

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Solution

The fourth proportional to 806,115.20, 1,207,423.20 and 666,147.20 is: 997,774.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,115.20 : 1,207,423.20 = 666,147.20 : x
  2. Step 2: Convert to fraction form
    806,115.20/1,207,423.20 = 666,147.20/x
  3. Step 3: Cross multiply
    806,115.20x = 1,207,423.20 × 666,147.20
  4. Step 4: Simplify right side
    806,115.20x = 804,321,583,895.04
  5. Step 5: Solve for x
    x = 804,321,583,895.04/806,115.20
  6. Step 6: Final answer
    x = 997,774.99

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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.