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Finding the Fourth Proportional to 487,546.60, 731,028.30 and 251,350.60

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Solution

The fourth proportional to 487,546.60, 731,028.30 and 251,350.60 is: 376,875.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,546.60 : 731,028.30 = 251,350.60 : x
  2. Step 2: Convert to fraction form
    487,546.60/731,028.30 = 251,350.60/x
  3. Step 3: Cross multiply
    487,546.60x = 731,028.30 × 251,350.60
  4. Step 4: Simplify right side
    487,546.60x = 183,744,401,821.98
  5. Step 5: Solve for x
    x = 183,744,401,821.98/487,546.60
  6. Step 6: Final answer
    x = 376,875.57

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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.