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Finding the Fourth Proportional to 1,254,724.83, 1,731,530.72 and 681,765.05

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Solution

The fourth proportional to 1,254,724.83, 1,731,530.72 and 681,765.05 is: 940,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,724.83 : 1,731,530.72 = 681,765.05 : x
  2. Step 2: Convert to fraction form
    1,254,724.83/1,731,530.72 = 681,765.05/x
  3. Step 3: Cross multiply
    1,254,724.83x = 1,731,530.72 × 681,765.05
  4. Step 4: Simplify right side
    1,254,724.83x = 1,180,497,133,930.58
  5. Step 5: Solve for x
    x = 1,180,497,133,930.58/1,254,724.83
  6. Step 6: Final answer
    x = 940,841.45

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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.