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Finding the Fourth Proportional to 562,771.62, 776,644.38 and 308,124.60

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Solution

The fourth proportional to 562,771.62, 776,644.38 and 308,124.60 is: 425,222.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,771.62 : 776,644.38 = 308,124.60 : x
  2. Step 2: Convert to fraction form
    562,771.62/776,644.38 = 308,124.60/x
  3. Step 3: Cross multiply
    562,771.62x = 776,644.38 × 308,124.60
  4. Step 4: Simplify right side
    562,771.62x = 239,303,238,929.75
  5. Step 5: Solve for x
    x = 239,303,238,929.75/562,771.62
  6. Step 6: Final answer
    x = 425,222.65

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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.