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Finding the Fourth Proportional to 321,353.62, 443,482.51 and 183,544.57

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Solution

The fourth proportional to 321,353.62, 443,482.51 and 183,544.57 is: 253,299.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,353.62 : 443,482.51 = 183,544.57 : x
  2. Step 2: Convert to fraction form
    321,353.62/443,482.51 = 183,544.57/x
  3. Step 3: Cross multiply
    321,353.62x = 443,482.51 × 183,544.57
  4. Step 4: Simplify right side
    321,353.62x = 81,398,806,600.47
  5. Step 5: Solve for x
    x = 81,398,806,600.47/321,353.62
  6. Step 6: Final answer
    x = 253,299.80

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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.