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Finding the Fourth Proportional to 397,343.34, 548,336.52 and 216,057.24

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Solution

The fourth proportional to 397,343.34, 548,336.52 and 216,057.24 is: 298,160.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,343.34 : 548,336.52 = 216,057.24 : x
  2. Step 2: Convert to fraction form
    397,343.34/548,336.52 = 216,057.24/x
  3. Step 3: Cross multiply
    397,343.34x = 548,336.52 × 216,057.24
  4. Step 4: Simplify right side
    397,343.34x = 118,472,075,102.41
  5. Step 5: Solve for x
    x = 118,472,075,102.41/397,343.34
  6. Step 6: Final answer
    x = 298,160.47

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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.