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Finding the Fourth Proportional to 562,362.78, 776,059.80 and 304,238.88

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Solution

The fourth proportional to 562,362.78, 776,059.80 and 304,238.88 is: 419,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,362.78 : 776,059.80 = 304,238.88 : x
  2. Step 2: Convert to fraction form
    562,362.78/776,059.80 = 304,238.88/x
  3. Step 3: Cross multiply
    562,362.78x = 776,059.80 × 304,238.88
  4. Step 4: Simplify right side
    562,362.78x = 236,107,564,365.02
  5. Step 5: Solve for x
    x = 236,107,564,365.02/562,362.78
  6. Step 6: Final answer
    x = 419,849.20

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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.