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Finding the Fourth Proportional to 482,905.87, 666,417.94 and 265,134.65

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Solution

The fourth proportional to 482,905.87, 666,417.94 and 265,134.65 is: 365,890.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,905.87 : 666,417.94 = 265,134.65 : x
  2. Step 2: Convert to fraction form
    482,905.87/666,417.94 = 265,134.65/x
  3. Step 3: Cross multiply
    482,905.87x = 666,417.94 × 265,134.65
  4. Step 4: Simplify right side
    482,905.87x = 176,690,483,280.70
  5. Step 5: Solve for x
    x = 176,690,483,280.70/482,905.87
  6. Step 6: Final answer
    x = 365,890.11

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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.