Home / 738,140.20-1,104,585.90-512,441.80

Finding the Fourth Proportional to 738,140.20, 1,104,585.90 and 512,441.80

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Solution

The fourth proportional to 738,140.20, 1,104,585.90 and 512,441.80 is: 766,840.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,140.20 : 1,104,585.90 = 512,441.80 : x
  2. Step 2: Convert to fraction form
    738,140.20/1,104,585.90 = 512,441.80/x
  3. Step 3: Cross multiply
    738,140.20x = 1,104,585.90 × 512,441.80
  4. Step 4: Simplify right side
    738,140.20x = 566,035,986,850.62
  5. Step 5: Solve for x
    x = 566,035,986,850.62/738,140.20
  6. Step 6: Final answer
    x = 766,840.75

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Double scale
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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.