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Finding the Fourth Proportional to 546,716.40, 820,074.60 and 192,130.80

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Solution

The fourth proportional to 546,716.40, 820,074.60 and 192,130.80 is: 288,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,716.40 : 820,074.60 = 192,130.80 : x
  2. Step 2: Convert to fraction form
    546,716.40/820,074.60 = 192,130.80/x
  3. Step 3: Cross multiply
    546,716.40x = 820,074.60 × 192,130.80
  4. Step 4: Simplify right side
    546,716.40x = 157,561,588,957.68
  5. Step 5: Solve for x
    x = 157,561,588,957.68/546,716.40
  6. Step 6: Final answer
    x = 288,196.20

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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.