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Finding the Fourth Proportional to 322,274.67, 483,421.59 and 153,812.76

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Solution

The fourth proportional to 322,274.67, 483,421.59 and 153,812.76 is: 230,723.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,274.67 : 483,421.59 = 153,812.76 : x
  2. Step 2: Convert to fraction form
    322,274.67/483,421.59 = 153,812.76/x
  3. Step 3: Cross multiply
    322,274.67x = 483,421.59 × 153,812.76
  4. Step 4: Simplify right side
    322,274.67x = 74,356,409,001.49
  5. Step 5: Solve for x
    x = 74,356,409,001.49/322,274.67
  6. Step 6: Final answer
    x = 230,723.71

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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.