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Finding the Fourth Proportional to 1,668,719.91, 2,496,224.53 and 1,332,417.43

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Solution

The fourth proportional to 1,668,719.91, 2,496,224.53 and 1,332,417.43 is: 1,993,152.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,719.91 : 2,496,224.53 = 1,332,417.43 : x
  2. Step 2: Convert to fraction form
    1,668,719.91/2,496,224.53 = 1,332,417.43/x
  3. Step 3: Cross multiply
    1,668,719.91x = 2,496,224.53 × 1,332,417.43
  4. Step 4: Simplify right side
    1,668,719.91x = 3,326,013,053,822.35
  5. Step 5: Solve for x
    x = 3,326,013,053,822.35/1,668,719.91
  6. Step 6: Final answer
    x = 1,993,152.38

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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.