Home / 579,786.80-869,680.20-248,010.80

Finding the Fourth Proportional to 579,786.80, 869,680.20 and 248,010.80

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Solution

The fourth proportional to 579,786.80, 869,680.20 and 248,010.80 is: 372,016.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,786.80 : 869,680.20 = 248,010.80 : x
  2. Step 2: Convert to fraction form
    579,786.80/869,680.20 = 248,010.80/x
  3. Step 3: Cross multiply
    579,786.80x = 869,680.20 × 248,010.80
  4. Step 4: Simplify right side
    579,786.80x = 215,690,082,146.16
  5. Step 5: Solve for x
    x = 215,690,082,146.16/579,786.80
  6. Step 6: Final answer
    x = 372,016.20

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Half scale
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Double scale
Find fourth proportional to 579,787.80, 869,681.70 and 248,011.80
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.