Home / 819,940.62-1,131,519.78-457,355.16

Finding the Fourth Proportional to 819,940.62, 1,131,519.78 and 457,355.16

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Solution

The fourth proportional to 819,940.62, 1,131,519.78 and 457,355.16 is: 631,151.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,940.62 : 1,131,519.78 = 457,355.16 : x
  2. Step 2: Convert to fraction form
    819,940.62/1,131,519.78 = 457,355.16/x
  3. Step 3: Cross multiply
    819,940.62x = 1,131,519.78 × 457,355.16
  4. Step 4: Simplify right side
    819,940.62x = 517,506,410,025.07
  5. Step 5: Solve for x
    x = 517,506,410,025.07/819,940.62
  6. Step 6: Final answer
    x = 631,151.08

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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.