Home / 819,712.29-1,131,200.73-457,136.55

Finding the Fourth Proportional to 819,712.29, 1,131,200.73 and 457,136.55

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Solution

The fourth proportional to 819,712.29, 1,131,200.73 and 457,136.55 is: 630,847.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,712.29 : 1,131,200.73 = 457,136.55 : x
  2. Step 2: Convert to fraction form
    819,712.29/1,131,200.73 = 457,136.55/x
  3. Step 3: Cross multiply
    819,712.29x = 1,131,200.73 × 457,136.55
  4. Step 4: Simplify right side
    819,712.29x = 517,113,199,069.68
  5. Step 5: Solve for x
    x = 517,113,199,069.68/819,712.29
  6. Step 6: Final answer
    x = 630,847.20

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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.