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Finding the Fourth Proportional to 562,112.23, 775,721 and 303,994.22

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Solution

The fourth proportional to 562,112.23, 775,721 and 303,994.22 is: 419,515.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,112.23 : 775,721 = 303,994.22 : x
  2. Step 2: Convert to fraction form
    562,112.23/775,721 = 303,994.22/x
  3. Step 3: Cross multiply
    562,112.23x = 775,721 × 303,994.22
  4. Step 4: Simplify right side
    562,112.23x = 235,814,696,454.02
  5. Step 5: Solve for x
    x = 235,814,696,454.02/562,112.23
  6. Step 6: Final answer
    x = 419,515.33

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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.