Home / 816,561.35-1,126,790.55-453,963.13

Finding the Fourth Proportional to 816,561.35, 1,126,790.55 and 453,963.13

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Solution

The fourth proportional to 816,561.35, 1,126,790.55 and 453,963.13 is: 626,433.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,561.35 : 1,126,790.55 = 453,963.13 : x
  2. Step 2: Convert to fraction form
    816,561.35/1,126,790.55 = 453,963.13/x
  3. Step 3: Cross multiply
    816,561.35x = 1,126,790.55 × 453,963.13
  4. Step 4: Simplify right side
    816,561.35x = 511,521,359,298.47
  5. Step 5: Solve for x
    x = 511,521,359,298.47/816,561.35
  6. Step 6: Final answer
    x = 626,433.47

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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.