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Finding the Fourth Proportional to 666,529.16, 999,897.41 and 217,145.41

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Solution

The fourth proportional to 666,529.16, 999,897.41 and 217,145.41 is: 325,751.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,529.16 : 999,897.41 = 217,145.41 : x
  2. Step 2: Convert to fraction form
    666,529.16/999,897.41 = 217,145.41/x
  3. Step 3: Cross multiply
    666,529.16x = 999,897.41 × 217,145.41
  4. Step 4: Simplify right side
    666,529.16x = 217,123,131,095.51
  5. Step 5: Solve for x
    x = 217,123,131,095.51/666,529.16
  6. Step 6: Final answer
    x = 325,751.89

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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.