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Finding the Fourth Proportional to 562,829.70, 776,697.26 and 308,180.90

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Solution

The fourth proportional to 562,829.70, 776,697.26 and 308,180.90 is: 425,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,829.70 : 776,697.26 = 308,180.90 : x
  2. Step 2: Convert to fraction form
    562,829.70/776,697.26 = 308,180.90/x
  3. Step 3: Cross multiply
    562,829.70x = 776,697.26 × 308,180.90
  4. Step 4: Simplify right side
    562,829.70x = 239,363,260,614.33
  5. Step 5: Solve for x
    x = 239,363,260,614.33/562,829.70
  6. Step 6: Final answer
    x = 425,285.41

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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.