Home / 663,848.08-995,920.20-190,496.54

Finding the Fourth Proportional to 663,848.08, 995,920.20 and 190,496.54

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Solution

The fourth proportional to 663,848.08, 995,920.20 and 190,496.54 is: 285,787.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,848.08 : 995,920.20 = 190,496.54 : x
  2. Step 2: Convert to fraction form
    663,848.08/995,920.20 = 190,496.54/x
  3. Step 3: Cross multiply
    663,848.08x = 995,920.20 × 190,496.54
  4. Step 4: Simplify right side
    663,848.08x = 189,719,354,705.91
  5. Step 5: Solve for x
    x = 189,719,354,705.91/663,848.08
  6. Step 6: Final answer
    x = 285,787.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.