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Finding the Fourth Proportional to 562,845.54, 776,735.44 and 308,220.42

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Solution

The fourth proportional to 562,845.54, 776,735.44 and 308,220.42 is: 425,348.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,845.54 : 776,735.44 = 308,220.42 : x
  2. Step 2: Convert to fraction form
    562,845.54/776,735.44 = 308,220.42/x
  3. Step 3: Cross multiply
    562,845.54x = 776,735.44 × 308,220.42
  4. Step 4: Simplify right side
    562,845.54x = 239,405,723,545.69
  5. Step 5: Solve for x
    x = 239,405,723,545.69/562,845.54
  6. Step 6: Final answer
    x = 425,348.89

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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.