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Finding the Fourth Proportional to 552,388.51, 762,400.83 and 345,752.74

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Solution

The fourth proportional to 552,388.51, 762,400.83 and 345,752.74 is: 477,204.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,388.51 : 762,400.83 = 345,752.74 : x
  2. Step 2: Convert to fraction form
    552,388.51/762,400.83 = 345,752.74/x
  3. Step 3: Cross multiply
    552,388.51x = 762,400.83 × 345,752.74
  4. Step 4: Simplify right side
    552,388.51x = 263,602,175,950.77
  5. Step 5: Solve for x
    x = 263,602,175,950.77/552,388.51
  6. Step 6: Final answer
    x = 477,204.31

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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.