Home / 1,101,954.47-1,520,613.78-618,426.20

Finding the Fourth Proportional to 1,101,954.47, 1,520,613.78 and 618,426.20

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Solution

The fourth proportional to 1,101,954.47, 1,520,613.78 and 618,426.20 is: 853,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,954.47 : 1,520,613.78 = 618,426.20 : x
  2. Step 2: Convert to fraction form
    1,101,954.47/1,520,613.78 = 618,426.20/x
  3. Step 3: Cross multiply
    1,101,954.47x = 1,520,613.78 × 618,426.20
  4. Step 4: Simplify right side
    1,101,954.47x = 940,387,394,029.97
  5. Step 5: Solve for x
    x = 940,387,394,029.97/1,101,954.47
  6. Step 6: Final answer
    x = 853,381.35

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1.5x scale

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.