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Finding the Fourth Proportional to 487,551.60, 731,035.80 and 251,355.60

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Solution

The fourth proportional to 487,551.60, 731,035.80 and 251,355.60 is: 376,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,551.60 : 731,035.80 = 251,355.60 : x
  2. Step 2: Convert to fraction form
    487,551.60/731,035.80 = 251,355.60/x
  3. Step 3: Cross multiply
    487,551.60x = 731,035.80 × 251,355.60
  4. Step 4: Simplify right side
    487,551.60x = 183,749,942,130.48
  5. Step 5: Solve for x
    x = 183,749,942,130.48/487,551.60
  6. Step 6: Final answer
    x = 376,883.07

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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.