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Finding the Fourth Proportional to 562,018.36, 775,596.60 and 307,385.92

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Solution

The fourth proportional to 562,018.36, 775,596.60 and 307,385.92 is: 424,198.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,018.36 : 775,596.60 = 307,385.92 : x
  2. Step 2: Convert to fraction form
    562,018.36/775,596.60 = 307,385.92/x
  3. Step 3: Cross multiply
    562,018.36x = 775,596.60 × 307,385.92
  4. Step 4: Simplify right side
    562,018.36x = 238,407,474,439.87
  5. Step 5: Solve for x
    x = 238,407,474,439.87/562,018.36
  6. Step 6: Final answer
    x = 424,198.73

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1.5x scale

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.