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Finding the Fourth Proportional to 537,860.40, 806,790.60 and 338,794.80

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Solution

The fourth proportional to 537,860.40, 806,790.60 and 338,794.80 is: 508,192.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,860.40 : 806,790.60 = 338,794.80 : x
  2. Step 2: Convert to fraction form
    537,860.40/806,790.60 = 338,794.80/x
  3. Step 3: Cross multiply
    537,860.40x = 806,790.60 × 338,794.80
  4. Step 4: Simplify right side
    537,860.40x = 273,336,459,968.88
  5. Step 5: Solve for x
    x = 273,336,459,968.88/537,860.40
  6. Step 6: Final answer
    x = 508,192.20

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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.