Home / 820,189.04-1,131,859.31-457,591.32

Finding the Fourth Proportional to 820,189.04, 1,131,859.31 and 457,591.32

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Solution

The fourth proportional to 820,189.04, 1,131,859.31 and 457,591.32 is: 631,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,189.04 : 1,131,859.31 = 457,591.32 : x
  2. Step 2: Convert to fraction form
    820,189.04/1,131,859.31 = 457,591.32/x
  3. Step 3: Cross multiply
    820,189.04x = 1,131,859.31 × 457,591.32
  4. Step 4: Simplify right side
    820,189.04x = 517,928,993,429.23
  5. Step 5: Solve for x
    x = 517,928,993,429.23/820,189.04
  6. Step 6: Final answer
    x = 631,475.15

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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.