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Finding the Fourth Proportional to 562,111.11, 775,693.83 and 320,471.49

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Solution

The fourth proportional to 562,111.11, 775,693.83 and 320,471.49 is: 442,239.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,111.11 : 775,693.83 = 320,471.49 : x
  2. Step 2: Convert to fraction form
    562,111.11/775,693.83 = 320,471.49/x
  3. Step 3: Cross multiply
    562,111.11x = 775,693.83 × 320,471.49
  4. Step 4: Simplify right side
    562,111.11x = 248,587,757,483.91
  5. Step 5: Solve for x
    x = 248,587,757,483.91/562,111.11
  6. Step 6: Final answer
    x = 442,239.54

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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.