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Finding the Fourth Proportional to 523,057.47, 784,586.21 and 149,070.75

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Solution

The fourth proportional to 523,057.47, 784,586.21 and 149,070.75 is: 223,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,057.47 : 784,586.21 = 149,070.75 : x
  2. Step 2: Convert to fraction form
    523,057.47/784,586.21 = 149,070.75/x
  3. Step 3: Cross multiply
    523,057.47x = 784,586.21 × 149,070.75
  4. Step 4: Simplify right side
    523,057.47x = 116,958,854,019.00
  5. Step 5: Solve for x
    x = 116,958,854,019.00/523,057.47
  6. Step 6: Final answer
    x = 223,606.13

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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.