Home / 540,665.20-811,120.96-287,812.44

Finding the Fourth Proportional to 540,665.20, 811,120.96 and 287,812.44

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Solution

The fourth proportional to 540,665.20, 811,120.96 and 287,812.44 is: 431,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,665.20 : 811,120.96 = 287,812.44 : x
  2. Step 2: Convert to fraction form
    540,665.20/811,120.96 = 287,812.44/x
  3. Step 3: Cross multiply
    540,665.20x = 811,120.96 × 287,812.44
  4. Step 4: Simplify right side
    540,665.20x = 233,450,702,632.74
  5. Step 5: Solve for x
    x = 233,450,702,632.74/540,665.20
  6. Step 6: Final answer
    x = 431,784.22

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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.