Home / 579,701.70-869,552.55-243,122.40

Finding the Fourth Proportional to 579,701.70, 869,552.55 and 243,122.40

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Solution

The fourth proportional to 579,701.70, 869,552.55 and 243,122.40 is: 364,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,701.70 : 869,552.55 = 243,122.40 : x
  2. Step 2: Convert to fraction form
    579,701.70/869,552.55 = 243,122.40/x
  3. Step 3: Cross multiply
    579,701.70x = 869,552.55 × 243,122.40
  4. Step 4: Simplify right side
    579,701.70x = 211,407,702,882.12
  5. Step 5: Solve for x
    x = 211,407,702,882.12/579,701.70
  6. Step 6: Final answer
    x = 364,683.60

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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.