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Finding the Fourth Proportional to 353,582.01, 487,994.58 and 198,550.71

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Solution

The fourth proportional to 353,582.01, 487,994.58 and 198,550.71 is: 274,028.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,582.01 : 487,994.58 = 198,550.71 : x
  2. Step 2: Convert to fraction form
    353,582.01/487,994.58 = 198,550.71/x
  3. Step 3: Cross multiply
    353,582.01x = 487,994.58 × 198,550.71
  4. Step 4: Simplify right side
    353,582.01x = 96,891,670,335.15
  5. Step 5: Solve for x
    x = 96,891,670,335.15/353,582.01
  6. Step 6: Final answer
    x = 274,028.85

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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.