Home / 853,589.17-1,177,976.82-471,640.57

Finding the Fourth Proportional to 853,589.17, 1,177,976.82 and 471,640.57

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Solution

The fourth proportional to 853,589.17, 1,177,976.82 and 471,640.57 is: 650,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,589.17 : 1,177,976.82 = 471,640.57 : x
  2. Step 2: Convert to fraction form
    853,589.17/1,177,976.82 = 471,640.57/x
  3. Step 3: Cross multiply
    853,589.17x = 1,177,976.82 × 471,640.57
  4. Step 4: Simplify right side
    853,589.17x = 555,581,658,831.59
  5. Step 5: Solve for x
    x = 555,581,658,831.59/853,589.17
  6. Step 6: Final answer
    x = 650,877.12

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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.