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Finding the Fourth Proportional to 275,813.60, 413,623.20 and 98,326.40

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Solution

The fourth proportional to 275,813.60, 413,623.20 and 98,326.40 is: 147,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,813.60 : 413,623.20 = 98,326.40 : x
  2. Step 2: Convert to fraction form
    275,813.60/413,623.20 = 98,326.40/x
  3. Step 3: Cross multiply
    275,813.60x = 413,623.20 × 98,326.40
  4. Step 4: Simplify right side
    275,813.60x = 40,670,080,212.48
  5. Step 5: Solve for x
    x = 40,670,080,212.48/275,813.60
  6. Step 6: Final answer
    x = 147,454.95

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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.