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Finding the Fourth Proportional to 1,303,917.12, 1,799,516.15 and 723,327.31

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Solution

The fourth proportional to 1,303,917.12, 1,799,516.15 and 723,327.31 is: 998,253.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,917.12 : 1,799,516.15 = 723,327.31 : x
  2. Step 2: Convert to fraction form
    1,303,917.12/1,799,516.15 = 723,327.31/x
  3. Step 3: Cross multiply
    1,303,917.12x = 1,799,516.15 × 723,327.31
  4. Step 4: Simplify right side
    1,303,917.12x = 1,301,639,182,156.62
  5. Step 5: Solve for x
    x = 1,301,639,182,156.62/1,303,917.12
  6. Step 6: Final answer
    x = 998,253.01

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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.