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Finding the Fourth Proportional to 801,555.32, 1,106,328.30 and 499,691

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Solution

The fourth proportional to 801,555.32, 1,106,328.30 and 499,691 is: 689,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,555.32 : 1,106,328.30 = 499,691 : x
  2. Step 2: Convert to fraction form
    801,555.32/1,106,328.30 = 499,691/x
  3. Step 3: Cross multiply
    801,555.32x = 1,106,328.30 × 499,691
  4. Step 4: Simplify right side
    801,555.32x = 552,822,294,555.30
  5. Step 5: Solve for x
    x = 552,822,294,555.30/801,555.32
  6. Step 6: Final answer
    x = 689,687.01

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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.