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Finding the Fourth Proportional to 777,832.24, 1,073,370 and 438,322.36

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Solution

The fourth proportional to 777,832.24, 1,073,370 and 438,322.36 is: 604,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,832.24 : 1,073,370 = 438,322.36 : x
  2. Step 2: Convert to fraction form
    777,832.24/1,073,370 = 438,322.36/x
  3. Step 3: Cross multiply
    777,832.24x = 1,073,370 × 438,322.36
  4. Step 4: Simplify right side
    777,832.24x = 470,482,071,553.20
  5. Step 5: Solve for x
    x = 470,482,071,553.20/777,832.24
  6. Step 6: Final answer
    x = 604,863.17

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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.