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Finding the Fourth Proportional to 484,715.94, 668,810.28 and 293,618.31

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Solution

The fourth proportional to 484,715.94, 668,810.28 and 293,618.31 is: 405,134.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,715.94 : 668,810.28 = 293,618.31 : x
  2. Step 2: Convert to fraction form
    484,715.94/668,810.28 = 293,618.31/x
  3. Step 3: Cross multiply
    484,715.94x = 668,810.28 × 293,618.31
  4. Step 4: Simplify right side
    484,715.94x = 196,374,940,780.18
  5. Step 5: Solve for x
    x = 196,374,940,780.18/484,715.94
  6. Step 6: Final answer
    x = 405,134.07

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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.