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Finding the Fourth Proportional to 468,073.96, 645,939.86 and 253,212.14

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Solution

The fourth proportional to 468,073.96, 645,939.86 and 253,212.14 is: 349,431.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,073.96 : 645,939.86 = 253,212.14 : x
  2. Step 2: Convert to fraction form
    468,073.96/645,939.86 = 253,212.14/x
  3. Step 3: Cross multiply
    468,073.96x = 645,939.86 × 253,212.14
  4. Step 4: Simplify right side
    468,073.96x = 163,559,814,610.69
  5. Step 5: Solve for x
    x = 163,559,814,610.69/468,073.96
  6. Step 6: Final answer
    x = 349,431.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.