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Finding the Fourth Proportional to 636,815.56, 955,188.78 and 193,549

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Solution

The fourth proportional to 636,815.56, 955,188.78 and 193,549 is: 290,313.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,815.56 : 955,188.78 = 193,549 : x
  2. Step 2: Convert to fraction form
    636,815.56/955,188.78 = 193,549/x
  3. Step 3: Cross multiply
    636,815.56x = 955,188.78 × 193,549
  4. Step 4: Simplify right side
    636,815.56x = 184,875,833,180.22
  5. Step 5: Solve for x
    x = 184,875,833,180.22/636,815.56
  6. Step 6: Final answer
    x = 290,313.00

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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.