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Finding the Fourth Proportional to 562,863.70, 776,750.60 and 308,212.66

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Solution

The fourth proportional to 562,863.70, 776,750.60 and 308,212.66 is: 425,332.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,863.70 : 776,750.60 = 308,212.66 : x
  2. Step 2: Convert to fraction form
    562,863.70/776,750.60 = 308,212.66/x
  3. Step 3: Cross multiply
    562,863.70x = 776,750.60 × 308,212.66
  4. Step 4: Simplify right side
    562,863.70x = 239,404,368,582.60
  5. Step 5: Solve for x
    x = 239,404,368,582.60/562,863.70
  6. Step 6: Final answer
    x = 425,332.76

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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.