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Finding the Fourth Proportional to 562,770.36, 776,622.96 and 308,121.48

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Solution

The fourth proportional to 562,770.36, 776,622.96 and 308,121.48 is: 425,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,770.36 : 776,622.96 = 308,121.48 : x
  2. Step 2: Convert to fraction form
    562,770.36/776,622.96 = 308,121.48/x
  3. Step 3: Cross multiply
    562,770.36x = 776,622.96 × 308,121.48
  4. Step 4: Simplify right side
    562,770.36x = 239,294,215,837.18
  5. Step 5: Solve for x
    x = 239,294,215,837.18/562,770.36
  6. Step 6: Final answer
    x = 425,207.57

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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.