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Finding the Fourth Proportional to 866,555, 1,195,823.54 and 479,360.34

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Solution

The fourth proportional to 866,555, 1,195,823.54 and 479,360.34 is: 661,504.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,555 : 1,195,823.54 = 479,360.34 : x
  2. Step 2: Convert to fraction form
    866,555/1,195,823.54 = 479,360.34/x
  3. Step 3: Cross multiply
    866,555x = 1,195,823.54 × 479,360.34
  4. Step 4: Simplify right side
    866,555x = 573,230,378,714.40
  5. Step 5: Solve for x
    x = 573,230,378,714.40/866,555
  6. Step 6: Final answer
    x = 661,504.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.