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Finding the Fourth Proportional to 459,073.17, 633,836.34 and 287,065.62

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Solution

The fourth proportional to 459,073.17, 633,836.34 and 287,065.62 is: 396,347.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,073.17 : 633,836.34 = 287,065.62 : x
  2. Step 2: Convert to fraction form
    459,073.17/633,836.34 = 287,065.62/x
  3. Step 3: Cross multiply
    459,073.17x = 633,836.34 × 287,065.62
  4. Step 4: Simplify right side
    459,073.17x = 181,952,621,920.63
  5. Step 5: Solve for x
    x = 181,952,621,920.63/459,073.17
  6. Step 6: Final answer
    x = 396,347.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.