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Finding the Fourth Proportional to 3,309,710.88, 4,964,851.32 and 913,555.92

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Solution

The fourth proportional to 3,309,710.88, 4,964,851.32 and 913,555.92 is: 1,370,412.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309,710.88 : 4,964,851.32 = 913,555.92 : x
  2. Step 2: Convert to fraction form
    3,309,710.88/4,964,851.32 = 913,555.92/x
  3. Step 3: Cross multiply
    3,309,710.88x = 4,964,851.32 × 913,555.92
  4. Step 4: Simplify right side
    3,309,710.88x = 4,535,669,315,305.81
  5. Step 5: Solve for x
    x = 4,535,669,315,305.81/3,309,710.88
  6. Step 6: Final answer
    x = 1,370,412.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.