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Finding the Fourth Proportional to 417,990.87, 626,984.69 and 151,750.35

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Solution

The fourth proportional to 417,990.87, 626,984.69 and 151,750.35 is: 227,624.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,990.87 : 626,984.69 = 151,750.35 : x
  2. Step 2: Convert to fraction form
    417,990.87/626,984.69 = 151,750.35/x
  3. Step 3: Cross multiply
    417,990.87x = 626,984.69 × 151,750.35
  4. Step 4: Simplify right side
    417,990.87x = 95,145,145,393.39
  5. Step 5: Solve for x
    x = 95,145,145,393.39/417,990.87
  6. Step 6: Final answer
    x = 227,624.94

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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.