Home / 855,395.20-1,281,710.40-539,286.40

Finding the Fourth Proportional to 855,395.20, 1,281,710.40 and 539,286.40

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Solution

The fourth proportional to 855,395.20, 1,281,710.40 and 539,286.40 is: 808,058.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,395.20 : 1,281,710.40 = 539,286.40 : x
  2. Step 2: Convert to fraction form
    855,395.20/1,281,710.40 = 539,286.40/x
  3. Step 3: Cross multiply
    855,395.20x = 1,281,710.40 × 539,286.40
  4. Step 4: Simplify right side
    855,395.20x = 691,208,987,458.56
  5. Step 5: Solve for x
    x = 691,208,987,458.56/855,395.20
  6. Step 6: Final answer
    x = 808,058.06

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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.