Home / 891,398.22-1,230,234.73-528,837.36

Finding the Fourth Proportional to 891,398.22, 1,230,234.73 and 528,837.36

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Solution

The fourth proportional to 891,398.22, 1,230,234.73 and 528,837.36 is: 729,857.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,398.22 : 1,230,234.73 = 528,837.36 : x
  2. Step 2: Convert to fraction form
    891,398.22/1,230,234.73 = 528,837.36/x
  3. Step 3: Cross multiply
    891,398.22x = 1,230,234.73 × 528,837.36
  4. Step 4: Simplify right side
    891,398.22x = 650,594,083,832.75
  5. Step 5: Solve for x
    x = 650,594,083,832.75/891,398.22
  6. Step 6: Final answer
    x = 729,857.96

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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.