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Finding the Fourth Proportional to 1,247,815.00, 1,721,984.70 and 674,855.18

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Solution

The fourth proportional to 1,247,815.00, 1,721,984.70 and 674,855.18 is: 931,300.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,815.00 : 1,721,984.70 = 674,855.18 : x
  2. Step 2: Convert to fraction form
    1,247,815.00/1,721,984.70 = 674,855.18/x
  3. Step 3: Cross multiply
    1,247,815.00x = 1,721,984.70 × 674,855.18
  4. Step 4: Simplify right side
    1,247,815.00x = 1,162,090,286,065.82
  5. Step 5: Solve for x
    x = 1,162,090,286,065.82/1,247,815.00
  6. Step 6: Final answer
    x = 931,300.14

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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.