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Finding the Fourth Proportional to 445,894.61, 668,557.41 and 293,916.23

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Solution

The fourth proportional to 445,894.61, 668,557.41 and 293,916.23 is: 440,686.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,894.61 : 668,557.41 = 293,916.23 : x
  2. Step 2: Convert to fraction form
    445,894.61/668,557.41 = 293,916.23/x
  3. Step 3: Cross multiply
    445,894.61x = 668,557.41 × 293,916.23
  4. Step 4: Simplify right side
    445,894.61x = 196,499,870,142.98
  5. Step 5: Solve for x
    x = 196,499,870,142.98/445,894.61
  6. Step 6: Final answer
    x = 440,686.81

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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.