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Finding the Fourth Proportional to 359,611.52, 496,161.60 and 216,299.84

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Solution

The fourth proportional to 359,611.52, 496,161.60 and 216,299.84 is: 298,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,611.52 : 496,161.60 = 216,299.84 : x
  2. Step 2: Convert to fraction form
    359,611.52/496,161.60 = 216,299.84/x
  3. Step 3: Cross multiply
    359,611.52x = 496,161.60 × 216,299.84
  4. Step 4: Simplify right side
    359,611.52x = 107,319,674,694.14
  5. Step 5: Solve for x
    x = 107,319,674,694.14/359,611.52
  6. Step 6: Final answer
    x = 298,432.25

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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.