Home / 926,329.60-1,389,494.40-393,716.80

Finding the Fourth Proportional to 926,329.60, 1,389,494.40 and 393,716.80

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Solution

The fourth proportional to 926,329.60, 1,389,494.40 and 393,716.80 is: 590,575.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,329.60 : 1,389,494.40 = 393,716.80 : x
  2. Step 2: Convert to fraction form
    926,329.60/1,389,494.40 = 393,716.80/x
  3. Step 3: Cross multiply
    926,329.60x = 1,389,494.40 × 393,716.80
  4. Step 4: Simplify right side
    926,329.60x = 547,067,288,785.92
  5. Step 5: Solve for x
    x = 547,067,288,785.92/926,329.60
  6. Step 6: Final answer
    x = 590,575.20

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Double scale
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Similar ratio
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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.