Home / 1,039,760.20-1,559,640.30-291,806.20

Finding the Fourth Proportional to 1,039,760.20, 1,559,640.30 and 291,806.20

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Solution

The fourth proportional to 1,039,760.20, 1,559,640.30 and 291,806.20 is: 437,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,760.20 : 1,559,640.30 = 291,806.20 : x
  2. Step 2: Convert to fraction form
    1,039,760.20/1,559,640.30 = 291,806.20/x
  3. Step 3: Cross multiply
    1,039,760.20x = 1,559,640.30 × 291,806.20
  4. Step 4: Simplify right side
    1,039,760.20x = 455,112,709,309.86
  5. Step 5: Solve for x
    x = 455,112,709,309.86/1,039,760.20
  6. Step 6: Final answer
    x = 437,709.30

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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.