Home / 765,872.87-1,057,046.27-443,582.87

Finding the Fourth Proportional to 765,872.87, 1,057,046.27 and 443,582.87

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Solution

The fourth proportional to 765,872.87, 1,057,046.27 and 443,582.87 is: 612,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,872.87 : 1,057,046.27 = 443,582.87 : x
  2. Step 2: Convert to fraction form
    765,872.87/1,057,046.27 = 443,582.87/x
  3. Step 3: Cross multiply
    765,872.87x = 1,057,046.27 × 443,582.87
  4. Step 4: Simplify right side
    765,872.87x = 468,887,610,666.25
  5. Step 5: Solve for x
    x = 468,887,610,666.25/765,872.87
  6. Step 6: Final answer
    x = 612,226.43

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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.