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Finding the Fourth Proportional to 308,316.60, 462,474.90 and 238,246.20

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Solution

The fourth proportional to 308,316.60, 462,474.90 and 238,246.20 is: 357,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,316.60 : 462,474.90 = 238,246.20 : x
  2. Step 2: Convert to fraction form
    308,316.60/462,474.90 = 238,246.20/x
  3. Step 3: Cross multiply
    308,316.60x = 462,474.90 × 238,246.20
  4. Step 4: Simplify right side
    308,316.60x = 110,182,887,520.38
  5. Step 5: Solve for x
    x = 110,182,887,520.38/308,316.60
  6. Step 6: Final answer
    x = 357,369.30

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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.