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Finding the Fourth Proportional to 562,655.52, 776,464.92 and 308,006.64

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Solution

The fourth proportional to 562,655.52, 776,464.92 and 308,006.64 is: 425,049.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,655.52 : 776,464.92 = 308,006.64 : x
  2. Step 2: Convert to fraction form
    562,655.52/776,464.92 = 308,006.64/x
  3. Step 3: Cross multiply
    562,655.52x = 776,464.92 × 308,006.64
  4. Step 4: Simplify right side
    562,655.52x = 239,156,351,087.07
  5. Step 5: Solve for x
    x = 239,156,351,087.07/562,655.52
  6. Step 6: Final answer
    x = 425,049.33

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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.