Home / 860,816.70-1,291,225.05-261,773.10

Finding the Fourth Proportional to 860,816.70, 1,291,225.05 and 261,773.10

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Solution

The fourth proportional to 860,816.70, 1,291,225.05 and 261,773.10 is: 392,659.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,816.70 : 1,291,225.05 = 261,773.10 : x
  2. Step 2: Convert to fraction form
    860,816.70/1,291,225.05 = 261,773.10/x
  3. Step 3: Cross multiply
    860,816.70x = 1,291,225.05 × 261,773.10
  4. Step 4: Simplify right side
    860,816.70x = 338,007,984,136.16
  5. Step 5: Solve for x
    x = 338,007,984,136.16/860,816.70
  6. Step 6: Final answer
    x = 392,659.65

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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.