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Finding the Fourth Proportional to 562,999.68, 776,958.24 and 308,364.96

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Solution

The fourth proportional to 562,999.68, 776,958.24 and 308,364.96 is: 425,553.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,999.68 : 776,958.24 = 308,364.96 : x
  2. Step 2: Convert to fraction form
    562,999.68/776,958.24 = 308,364.96/x
  3. Step 3: Cross multiply
    562,999.68x = 776,958.24 × 308,364.96
  4. Step 4: Simplify right side
    562,999.68x = 239,586,696,599.27
  5. Step 5: Solve for x
    x = 239,586,696,599.27/562,999.68
  6. Step 6: Final answer
    x = 425,553.88

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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.