Home / 913,934.43-1,261,229.36-511,526.43

Finding the Fourth Proportional to 913,934.43, 1,261,229.36 and 511,526.43

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Solution

The fourth proportional to 913,934.43, 1,261,229.36 and 511,526.43 is: 705,906.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,934.43 : 1,261,229.36 = 511,526.43 : x
  2. Step 2: Convert to fraction form
    913,934.43/1,261,229.36 = 511,526.43/x
  3. Step 3: Cross multiply
    913,934.43x = 1,261,229.36 × 511,526.43
  4. Step 4: Simplify right side
    913,934.43x = 645,152,149,374.35
  5. Step 5: Solve for x
    x = 645,152,149,374.35/913,934.43
  6. Step 6: Final answer
    x = 705,906.38

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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.