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Finding the Fourth Proportional to 326,057.32, 488,984.94 and 157,472.84

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Solution

The fourth proportional to 326,057.32, 488,984.94 and 157,472.84 is: 236,160.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,057.32 : 488,984.94 = 157,472.84 : x
  2. Step 2: Convert to fraction form
    326,057.32/488,984.94 = 157,472.84/x
  3. Step 3: Cross multiply
    326,057.32x = 488,984.94 × 157,472.84
  4. Step 4: Simplify right side
    326,057.32x = 77,001,847,219.03
  5. Step 5: Solve for x
    x = 77,001,847,219.03/326,057.32
  6. Step 6: Final answer
    x = 236,160.46

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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.