Home / 353,019.12-487,169.34-191,874.12

Finding the Fourth Proportional to 353,019.12, 487,169.34 and 191,874.12

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Solution

The fourth proportional to 353,019.12, 487,169.34 and 191,874.12 is: 264,787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,019.12 : 487,169.34 = 191,874.12 : x
  2. Step 2: Convert to fraction form
    353,019.12/487,169.34 = 191,874.12/x
  3. Step 3: Cross multiply
    353,019.12x = 487,169.34 × 191,874.12
  4. Step 4: Simplify right side
    353,019.12x = 93,475,188,403.48
  5. Step 5: Solve for x
    x = 93,475,188,403.48/353,019.12
  6. Step 6: Final answer
    x = 264,787.89

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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.