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Finding the Fourth Proportional to 356,728.60, 535,092.90 and 324,069.40

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Solution

The fourth proportional to 356,728.60, 535,092.90 and 324,069.40 is: 486,104.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,728.60 : 535,092.90 = 324,069.40 : x
  2. Step 2: Convert to fraction form
    356,728.60/535,092.90 = 324,069.40/x
  3. Step 3: Cross multiply
    356,728.60x = 535,092.90 × 324,069.40
  4. Step 4: Simplify right side
    356,728.60x = 173,407,235,047.26
  5. Step 5: Solve for x
    x = 173,407,235,047.26/356,728.60
  6. Step 6: Final answer
    x = 486,104.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.