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Finding the Fourth Proportional to 327,775.40, 491,663.10 and 282,674.60

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Solution

The fourth proportional to 327,775.40, 491,663.10 and 282,674.60 is: 424,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,775.40 : 491,663.10 = 282,674.60 : x
  2. Step 2: Convert to fraction form
    327,775.40/491,663.10 = 282,674.60/x
  3. Step 3: Cross multiply
    327,775.40x = 491,663.10 × 282,674.60
  4. Step 4: Simplify right side
    327,775.40x = 138,980,670,127.26
  5. Step 5: Solve for x
    x = 138,980,670,127.26/327,775.40
  6. Step 6: Final answer
    x = 424,011.90

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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.