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Finding the Fourth Proportional to 330,393.59, 497,811.44 and 298,838.83

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Solution

The fourth proportional to 330,393.59, 497,811.44 and 298,838.83 is: 450,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,393.59 : 497,811.44 = 298,838.83 : x
  2. Step 2: Convert to fraction form
    330,393.59/497,811.44 = 298,838.83/x
  3. Step 3: Cross multiply
    330,393.59x = 497,811.44 × 298,838.83
  4. Step 4: Simplify right side
    330,393.59x = 148,765,385,801.16
  5. Step 5: Solve for x
    x = 148,765,385,801.16/330,393.59
  6. Step 6: Final answer
    x = 450,267.17

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.