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Finding the Fourth Proportional to 522,132.75, 783,199.80 and 143,056.80

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Solution

The fourth proportional to 522,132.75, 783,199.80 and 143,056.80 is: 214,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,132.75 : 783,199.80 = 143,056.80 : x
  2. Step 2: Convert to fraction form
    522,132.75/783,199.80 = 143,056.80/x
  3. Step 3: Cross multiply
    522,132.75x = 783,199.80 × 143,056.80
  4. Step 4: Simplify right side
    522,132.75x = 112,042,057,148.64
  5. Step 5: Solve for x
    x = 112,042,057,148.64/522,132.75
  6. Step 6: Final answer
    x = 214,585.38

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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.