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Finding the Fourth Proportional to 442,483.49, 663,725.61 and 189,599.94

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Solution

The fourth proportional to 442,483.49, 663,725.61 and 189,599.94 is: 284,400.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,483.49 : 663,725.61 = 189,599.94 : x
  2. Step 2: Convert to fraction form
    442,483.49/663,725.61 = 189,599.94/x
  3. Step 3: Cross multiply
    442,483.49x = 663,725.61 × 189,599.94
  4. Step 4: Simplify right side
    442,483.49x = 125,842,335,832.46
  5. Step 5: Solve for x
    x = 125,842,335,832.46/442,483.49
  6. Step 6: Final answer
    x = 284,400.07

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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.