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Finding the Fourth Proportional to 611,478.84, 914,845.14 and 536,031.48

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Solution

The fourth proportional to 611,478.84, 914,845.14 and 536,031.48 is: 801,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,478.84 : 914,845.14 = 536,031.48 : x
  2. Step 2: Convert to fraction form
    611,478.84/914,845.14 = 536,031.48/x
  3. Step 3: Cross multiply
    611,478.84x = 914,845.14 × 536,031.48
  4. Step 4: Simplify right side
    611,478.84x = 490,385,794,365.01
  5. Step 5: Solve for x
    x = 490,385,794,365.01/611,478.84
  6. Step 6: Final answer
    x = 801,966.91

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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.