Home / 810,086.52-1,117,915.80-447,510.55

Finding the Fourth Proportional to 810,086.52, 1,117,915.80 and 447,510.55

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Solution

The fourth proportional to 810,086.52, 1,117,915.80 and 447,510.55 is: 617,562.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,086.52 : 1,117,915.80 = 447,510.55 : x
  2. Step 2: Convert to fraction form
    810,086.52/1,117,915.80 = 447,510.55/x
  3. Step 3: Cross multiply
    810,086.52x = 1,117,915.80 × 447,510.55
  4. Step 4: Simplify right side
    810,086.52x = 500,279,112,766.56
  5. Step 5: Solve for x
    x = 500,279,112,766.56/810,086.52
  6. Step 6: Final answer
    x = 617,562.57

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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.