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Finding the Fourth Proportional to 331,503.24, 457,354.47 and 216,847.33

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Solution

The fourth proportional to 331,503.24, 457,354.47 and 216,847.33 is: 299,170.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,503.24 : 457,354.47 = 216,847.33 : x
  2. Step 2: Convert to fraction form
    331,503.24/457,354.47 = 216,847.33/x
  3. Step 3: Cross multiply
    331,503.24x = 457,354.47 × 216,847.33
  4. Step 4: Simplify right side
    331,503.24x = 99,176,095,683.07
  5. Step 5: Solve for x
    x = 99,176,095,683.07/331,503.24
  6. Step 6: Final answer
    x = 299,170.82

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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.