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Finding the Fourth Proportional to 649,301.76, 895,969.92 and 445,527.36

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Solution

The fourth proportional to 649,301.76, 895,969.92 and 445,527.36 is: 614,782.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,301.76 : 895,969.92 = 445,527.36 : x
  2. Step 2: Convert to fraction form
    649,301.76/895,969.92 = 445,527.36/x
  3. Step 3: Cross multiply
    649,301.76x = 895,969.92 × 445,527.36
  4. Step 4: Simplify right side
    649,301.76x = 399,179,113,097.01
  5. Step 5: Solve for x
    x = 399,179,113,097.01/649,301.76
  6. Step 6: Final answer
    x = 614,782.12

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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.