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Finding the Fourth Proportional to 636,322.50, 954,489.51 and 193,090.50

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Solution

The fourth proportional to 636,322.50, 954,489.51 and 193,090.50 is: 289,637.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,322.50 : 954,489.51 = 193,090.50 : x
  2. Step 2: Convert to fraction form
    636,322.50/954,489.51 = 193,090.50/x
  3. Step 3: Cross multiply
    636,322.50x = 954,489.51 × 193,090.50
  4. Step 4: Simplify right side
    636,322.50x = 184,302,856,730.66
  5. Step 5: Solve for x
    x = 184,302,856,730.66/636,322.50
  6. Step 6: Final answer
    x = 289,637.50

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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.