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Finding the Fourth Proportional to 1,245,867.67, 1,719,313.46 and 736,565.59

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Solution

The fourth proportional to 1,245,867.67, 1,719,313.46 and 736,565.59 is: 1,016,470.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,867.67 : 1,719,313.46 = 736,565.59 : x
  2. Step 2: Convert to fraction form
    1,245,867.67/1,719,313.46 = 736,565.59/x
  3. Step 3: Cross multiply
    1,245,867.67x = 1,719,313.46 × 736,565.59
  4. Step 4: Simplify right side
    1,245,867.67x = 1,266,387,133,059.84
  5. Step 5: Solve for x
    x = 1,266,387,133,059.84/1,245,867.67
  6. Step 6: Final answer
    x = 1,016,470.02

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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.