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Finding the Fourth Proportional to 609,811.60, 914,717.40 and 277,387.60

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Solution

The fourth proportional to 609,811.60, 914,717.40 and 277,387.60 is: 416,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,811.60 : 914,717.40 = 277,387.60 : x
  2. Step 2: Convert to fraction form
    609,811.60/914,717.40 = 277,387.60/x
  3. Step 3: Cross multiply
    609,811.60x = 914,717.40 × 277,387.60
  4. Step 4: Simplify right side
    609,811.60x = 253,731,264,264.24
  5. Step 5: Solve for x
    x = 253,731,264,264.24/609,811.60
  6. Step 6: Final answer
    x = 416,081.40

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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.