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Finding the Fourth Proportional to 397,349.85, 548,334.99 and 216,060.24

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Solution

The fourth proportional to 397,349.85, 548,334.99 and 216,060.24 is: 298,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,349.85 : 548,334.99 = 216,060.24 : x
  2. Step 2: Convert to fraction form
    397,349.85/548,334.99 = 216,060.24/x
  3. Step 3: Cross multiply
    397,349.85x = 548,334.99 × 216,060.24
  4. Step 4: Simplify right side
    397,349.85x = 118,473,389,539.80
  5. Step 5: Solve for x
    x = 118,473,389,539.80/397,349.85
  6. Step 6: Final answer
    x = 298,158.89

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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.