Home / 769,643.20-1,154,464.80-517,700.80

Finding the Fourth Proportional to 769,643.20, 1,154,464.80 and 517,700.80

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Solution

The fourth proportional to 769,643.20, 1,154,464.80 and 517,700.80 is: 776,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,643.20 : 1,154,464.80 = 517,700.80 : x
  2. Step 2: Convert to fraction form
    769,643.20/1,154,464.80 = 517,700.80/x
  3. Step 3: Cross multiply
    769,643.20x = 1,154,464.80 × 517,700.80
  4. Step 4: Simplify right side
    769,643.20x = 597,667,350,531.84
  5. Step 5: Solve for x
    x = 597,667,350,531.84/769,643.20
  6. Step 6: Final answer
    x = 776,551.20

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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.