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Finding the Fourth Proportional to 1,248,945.89, 1,723,559.42 and 732,708.59

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Solution

The fourth proportional to 1,248,945.89, 1,723,559.42 and 732,708.59 is: 1,011,146.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,945.89 : 1,723,559.42 = 732,708.59 : x
  2. Step 2: Convert to fraction form
    1,248,945.89/1,723,559.42 = 732,708.59/x
  3. Step 3: Cross multiply
    1,248,945.89x = 1,723,559.42 × 732,708.59
  4. Step 4: Simplify right side
    1,248,945.89x = 1,262,866,785,623.39
  5. Step 5: Solve for x
    x = 1,262,866,785,623.39/1,248,945.89
  6. Step 6: Final answer
    x = 1,011,146.12

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