Home / 279,403.83-385,577.82-152,079.12

Finding the Fourth Proportional to 279,403.83, 385,577.82 and 152,079.12

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Solution

The fourth proportional to 279,403.83, 385,577.82 and 152,079.12 is: 209,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,403.83 : 385,577.82 = 152,079.12 : x
  2. Step 2: Convert to fraction form
    279,403.83/385,577.82 = 152,079.12/x
  3. Step 3: Cross multiply
    279,403.83x = 385,577.82 × 152,079.12
  4. Step 4: Simplify right side
    279,403.83x = 58,638,335,557.12
  5. Step 5: Solve for x
    x = 58,638,335,557.12/279,403.83
  6. Step 6: Final answer
    x = 209,869.48

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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.