Home / 279,746.49-385,885.32-197,982.77

Finding the Fourth Proportional to 279,746.49, 385,885.32 and 197,982.77

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Solution

The fourth proportional to 279,746.49, 385,885.32 and 197,982.77 is: 273,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,746.49 : 385,885.32 = 197,982.77 : x
  2. Step 2: Convert to fraction form
    279,746.49/385,885.32 = 197,982.77/x
  3. Step 3: Cross multiply
    279,746.49x = 385,885.32 × 197,982.77
  4. Step 4: Simplify right side
    279,746.49x = 76,398,641,884.07
  5. Step 5: Solve for x
    x = 76,398,641,884.07/279,746.49
  6. Step 6: Final answer
    x = 273,099.55

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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.