Home / 857,744.10-1,286,616.15-385,352.10

Finding the Fourth Proportional to 857,744.10, 1,286,616.15 and 385,352.10

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Solution

The fourth proportional to 857,744.10, 1,286,616.15 and 385,352.10 is: 578,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,744.10 : 1,286,616.15 = 385,352.10 : x
  2. Step 2: Convert to fraction form
    857,744.10/1,286,616.15 = 385,352.10/x
  3. Step 3: Cross multiply
    857,744.10x = 1,286,616.15 × 385,352.10
  4. Step 4: Simplify right side
    857,744.10x = 495,800,235,296.42
  5. Step 5: Solve for x
    x = 495,800,235,296.42/857,744.10
  6. Step 6: Final answer
    x = 578,028.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.