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Finding the Fourth Proportional to 479,326.64, 661,710.46 and 298,096.95

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Solution

The fourth proportional to 479,326.64, 661,710.46 and 298,096.95 is: 411,522.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,326.64 : 661,710.46 = 298,096.95 : x
  2. Step 2: Convert to fraction form
    479,326.64/661,710.46 = 298,096.95/x
  3. Step 3: Cross multiply
    479,326.64x = 661,710.46 × 298,096.95
  4. Step 4: Simplify right side
    479,326.64x = 197,253,869,909.10
  5. Step 5: Solve for x
    x = 197,253,869,909.10/479,326.64
  6. Step 6: Final answer
    x = 411,522.86

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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.