Home / 819,725.87-1,131,219.51-457,150.16

Finding the Fourth Proportional to 819,725.87, 1,131,219.51 and 457,150.16

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Solution

The fourth proportional to 819,725.87, 1,131,219.51 and 457,150.16 is: 630,866.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,725.87 : 1,131,219.51 = 457,150.16 : x
  2. Step 2: Convert to fraction form
    819,725.87/1,131,219.51 = 457,150.16/x
  3. Step 3: Cross multiply
    819,725.87x = 1,131,219.51 × 457,150.16
  4. Step 4: Simplify right side
    819,725.87x = 517,137,179,991.62
  5. Step 5: Solve for x
    x = 517,137,179,991.62/819,725.87
  6. Step 6: Final answer
    x = 630,866.00

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Double scale
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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.