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Finding the Fourth Proportional to 562,911.86, 776,812.55 and 304,784.37

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Solution

The fourth proportional to 562,911.86, 776,812.55 and 304,784.37 is: 420,599.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,911.86 : 776,812.55 = 304,784.37 : x
  2. Step 2: Convert to fraction form
    562,911.86/776,812.55 = 304,784.37/x
  3. Step 3: Cross multiply
    562,911.86x = 776,812.55 × 304,784.37
  4. Step 4: Simplify right side
    562,911.86x = 236,760,322,135.92
  5. Step 5: Solve for x
    x = 236,760,322,135.92/562,911.86
  6. Step 6: Final answer
    x = 420,599.28

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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.