Home / 819,711.79-1,131,200.04-457,136.04

Finding the Fourth Proportional to 819,711.79, 1,131,200.04 and 457,136.04

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Solution

The fourth proportional to 819,711.79, 1,131,200.04 and 457,136.04 is: 630,846.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,711.79 : 1,131,200.04 = 457,136.04 : x
  2. Step 2: Convert to fraction form
    819,711.79/1,131,200.04 = 457,136.04/x
  3. Step 3: Cross multiply
    819,711.79x = 1,131,200.04 × 457,136.04
  4. Step 4: Simplify right side
    819,711.79x = 517,112,306,733.44
  5. Step 5: Solve for x
    x = 517,112,306,733.44/819,711.79
  6. Step 6: Final answer
    x = 630,846.49

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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.