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Finding the Fourth Proportional to 492,052.90, 738,079.35 and 487,905.70

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Solution

The fourth proportional to 492,052.90, 738,079.35 and 487,905.70 is: 731,858.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,052.90 : 738,079.35 = 487,905.70 : x
  2. Step 2: Convert to fraction form
    492,052.90/738,079.35 = 487,905.70/x
  3. Step 3: Cross multiply
    492,052.90x = 738,079.35 × 487,905.70
  4. Step 4: Simplify right side
    492,052.90x = 360,113,121,917.30
  5. Step 5: Solve for x
    x = 360,113,121,917.30/492,052.90
  6. Step 6: Final answer
    x = 731,858.55

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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.