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Finding the Fourth Proportional to 562,728.36, 776,584.08 and 308,084.88

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Solution

The fourth proportional to 562,728.36, 776,584.08 and 308,084.88 is: 425,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,728.36 : 776,584.08 = 308,084.88 : x
  2. Step 2: Convert to fraction form
    562,728.36/776,584.08 = 308,084.88/x
  3. Step 3: Cross multiply
    562,728.36x = 776,584.08 × 308,084.88
  4. Step 4: Simplify right side
    562,728.36x = 239,253,813,096.71
  5. Step 5: Solve for x
    x = 239,253,813,096.71/562,728.36
  6. Step 6: Final answer
    x = 425,167.51

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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.