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Finding the Fourth Proportional to 397,338.84, 548,330.45 and 216,050.58

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Solution

The fourth proportional to 397,338.84, 548,330.45 and 216,050.58 is: 298,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,338.84 : 548,330.45 = 216,050.58 : x
  2. Step 2: Convert to fraction form
    397,338.84/548,330.45 = 216,050.58/x
  3. Step 3: Cross multiply
    397,338.84x = 548,330.45 × 216,050.58
  4. Step 4: Simplify right side
    397,338.84x = 118,467,110,673.91
  5. Step 5: Solve for x
    x = 118,467,110,673.91/397,338.84
  6. Step 6: Final answer
    x = 298,151.35

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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.