Home / 679,360.42-1,019,045.05-199,586.23

Finding the Fourth Proportional to 679,360.42, 1,019,045.05 and 199,586.23

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Solution

The fourth proportional to 679,360.42, 1,019,045.05 and 199,586.23 is: 299,380.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,360.42 : 1,019,045.05 = 199,586.23 : x
  2. Step 2: Convert to fraction form
    679,360.42/1,019,045.05 = 199,586.23/x
  3. Step 3: Cross multiply
    679,360.42x = 1,019,045.05 × 199,586.23
  4. Step 4: Simplify right side
    679,360.42x = 203,387,357,805.76
  5. Step 5: Solve for x
    x = 203,387,357,805.76/679,360.42
  6. Step 6: Final answer
    x = 299,380.64

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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.