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Finding the Fourth Proportional to 1,888,762.91, 2,606,229.92 and 1,061,719.55

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Solution

The fourth proportional to 1,888,762.91, 2,606,229.92 and 1,061,719.55 is: 1,465,025.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,762.91 : 2,606,229.92 = 1,061,719.55 : x
  2. Step 2: Convert to fraction form
    1,888,762.91/2,606,229.92 = 1,061,719.55/x
  3. Step 3: Cross multiply
    1,888,762.91x = 2,606,229.92 × 1,061,719.55
  4. Step 4: Simplify right side
    1,888,762.91x = 2,767,085,252,550.34
  5. Step 5: Solve for x
    x = 2,767,085,252,550.34/1,888,762.91
  6. Step 6: Final answer
    x = 1,465,025.20

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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.