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Finding the Fourth Proportional to 384,580.71, 530,370.18 and 293,767.83

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Solution

The fourth proportional to 384,580.71, 530,370.18 and 293,767.83 is: 405,131.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,580.71 : 530,370.18 = 293,767.83 : x
  2. Step 2: Convert to fraction form
    384,580.71/530,370.18 = 293,767.83/x
  3. Step 3: Cross multiply
    384,580.71x = 530,370.18 × 293,767.83
  4. Step 4: Simplify right side
    384,580.71x = 155,805,696,875.31
  5. Step 5: Solve for x
    x = 155,805,696,875.31/384,580.71
  6. Step 6: Final answer
    x = 405,131.34

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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.