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Finding the Fourth Proportional to 636,328.94, 954,657.45 and 187,064.48

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Solution

The fourth proportional to 636,328.94, 954,657.45 and 187,064.48 is: 280,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,328.94 : 954,657.45 = 187,064.48 : x
  2. Step 2: Convert to fraction form
    636,328.94/954,657.45 = 187,064.48/x
  3. Step 3: Cross multiply
    636,328.94x = 954,657.45 × 187,064.48
  4. Step 4: Simplify right side
    636,328.94x = 178,582,499,462.38
  5. Step 5: Solve for x
    x = 178,582,499,462.38/636,328.94
  6. Step 6: Final answer
    x = 280,644.94

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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.