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Finding the Fourth Proportional to 562,772.62, 776,645.76 and 308,125.60

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Solution

The fourth proportional to 562,772.62, 776,645.76 and 308,125.60 is: 425,224.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,772.62 : 776,645.76 = 308,125.60 : x
  2. Step 2: Convert to fraction form
    562,772.62/776,645.76 = 308,125.60/x
  3. Step 3: Cross multiply
    562,772.62x = 776,645.76 × 308,125.60
  4. Step 4: Simplify right side
    562,772.62x = 239,304,440,787.46
  5. Step 5: Solve for x
    x = 239,304,440,787.46/562,772.62
  6. Step 6: Final answer
    x = 425,224.03

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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.