Home / 1,208,744.17-1,668,106.61-664,921.71

Finding the Fourth Proportional to 1,208,744.17, 1,668,106.61 and 664,921.71

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Solution

The fourth proportional to 1,208,744.17, 1,668,106.61 and 664,921.71 is: 917,613.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,744.17 : 1,668,106.61 = 664,921.71 : x
  2. Step 2: Convert to fraction form
    1,208,744.17/1,668,106.61 = 664,921.71/x
  3. Step 3: Cross multiply
    1,208,744.17x = 1,668,106.61 × 664,921.71
  4. Step 4: Simplify right side
    1,208,744.17x = 1,109,160,298,752.35
  5. Step 5: Solve for x
    x = 1,109,160,298,752.35/1,208,744.17
  6. Step 6: Final answer
    x = 917,613.78

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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.