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Finding the Fourth Proportional to 562,781.71, 776,632.87 and 304,652.83

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Solution

The fourth proportional to 562,781.71, 776,632.87 and 304,652.83 is: 420,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,781.71 : 776,632.87 = 304,652.83 : x
  2. Step 2: Convert to fraction form
    562,781.71/776,632.87 = 304,652.83/x
  3. Step 3: Cross multiply
    562,781.71x = 776,632.87 × 304,652.83
  4. Step 4: Simplify right side
    562,781.71x = 236,603,401,716.52
  5. Step 5: Solve for x
    x = 236,603,401,716.52/562,781.71
  6. Step 6: Final answer
    x = 420,417.72

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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.