Home / 928,584.19-1,281,499.55-520,816.83

Finding the Fourth Proportional to 928,584.19, 1,281,499.55 and 520,816.83

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Solution

The fourth proportional to 928,584.19, 1,281,499.55 and 520,816.83 is: 718,757.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,584.19 : 1,281,499.55 = 520,816.83 : x
  2. Step 2: Convert to fraction form
    928,584.19/1,281,499.55 = 520,816.83/x
  3. Step 3: Cross multiply
    928,584.19x = 1,281,499.55 × 520,816.83
  4. Step 4: Simplify right side
    928,584.19x = 667,426,533,277.43
  5. Step 5: Solve for x
    x = 667,426,533,277.43/928,584.19
  6. Step 6: Final answer
    x = 718,757.16

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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.