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Finding the Fourth Proportional to 523,194, 784,798.40 and 149,217

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Solution

The fourth proportional to 523,194, 784,798.40 and 149,217 is: 223,827.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,194 : 784,798.40 = 149,217 : x
  2. Step 2: Convert to fraction form
    523,194/784,798.40 = 149,217/x
  3. Step 3: Cross multiply
    523,194x = 784,798.40 × 149,217
  4. Step 4: Simplify right side
    523,194x = 117,105,262,852.80
  5. Step 5: Solve for x
    x = 117,105,262,852.80/523,194
  6. Step 6: Final answer
    x = 223,827.61

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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.