Home / 858,816.12-1,185,219.90-496,306.38

Finding the Fourth Proportional to 858,816.12, 1,185,219.90 and 496,306.38

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Solution

The fourth proportional to 858,816.12, 1,185,219.90 and 496,306.38 is: 684,933.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,816.12 : 1,185,219.90 = 496,306.38 : x
  2. Step 2: Convert to fraction form
    858,816.12/1,185,219.90 = 496,306.38/x
  3. Step 3: Cross multiply
    858,816.12x = 1,185,219.90 × 496,306.38
  4. Step 4: Simplify right side
    858,816.12x = 588,232,198,072.96
  5. Step 5: Solve for x
    x = 588,232,198,072.96/858,816.12
  6. Step 6: Final answer
    x = 684,933.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.