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Finding the Fourth Proportional to 636,228.45, 954,342.68 and 192,996.45

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Solution

The fourth proportional to 636,228.45, 954,342.68 and 192,996.45 is: 289,494.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,228.45 : 954,342.68 = 192,996.45 : x
  2. Step 2: Convert to fraction form
    636,228.45/954,342.68 = 192,996.45/x
  3. Step 3: Cross multiply
    636,228.45x = 954,342.68 × 192,996.45
  4. Step 4: Simplify right side
    636,228.45x = 184,184,748,358.50
  5. Step 5: Solve for x
    x = 184,184,748,358.50/636,228.45
  6. Step 6: Final answer
    x = 289,494.68

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Double scale
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Similar ratio
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1.5x scale

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.