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Finding the Fourth Proportional to 520,376.24, 718,109.88 and 294,016.88

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Solution

The fourth proportional to 520,376.24, 718,109.88 and 294,016.88 is: 405,738.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,376.24 : 718,109.88 = 294,016.88 : x
  2. Step 2: Convert to fraction form
    520,376.24/718,109.88 = 294,016.88/x
  3. Step 3: Cross multiply
    520,376.24x = 718,109.88 × 294,016.88
  4. Step 4: Simplify right side
    520,376.24x = 211,136,426,414.77
  5. Step 5: Solve for x
    x = 211,136,426,414.77/520,376.24
  6. Step 6: Final answer
    x = 405,738.02

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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.