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Finding the Fourth Proportional to 397,425.48, 548,441.99 and 216,133.52

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Solution

The fourth proportional to 397,425.48, 548,441.99 and 216,133.52 is: 298,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,425.48 : 548,441.99 = 216,133.52 : x
  2. Step 2: Convert to fraction form
    397,425.48/548,441.99 = 216,133.52/x
  3. Step 3: Cross multiply
    397,425.48x = 548,441.99 × 216,133.52
  4. Step 4: Simplify right side
    397,425.48x = 118,536,697,814.51
  5. Step 5: Solve for x
    x = 118,536,697,814.51/397,425.48
  6. Step 6: Final answer
    x = 298,261.44

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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.