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Finding the Fourth Proportional to 308,882.20, 463,323.30 and 87,266.20

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Solution

The fourth proportional to 308,882.20, 463,323.30 and 87,266.20 is: 130,899.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,882.20 : 463,323.30 = 87,266.20 : x
  2. Step 2: Convert to fraction form
    308,882.20/463,323.30 = 87,266.20/x
  3. Step 3: Cross multiply
    308,882.20x = 463,323.30 × 87,266.20
  4. Step 4: Simplify right side
    308,882.20x = 40,432,463,762.46
  5. Step 5: Solve for x
    x = 40,432,463,762.46/308,882.20
  6. Step 6: Final answer
    x = 130,899.30

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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.