Home / 612,035.75-917,490.68-327,921.77

Finding the Fourth Proportional to 612,035.75, 917,490.68 and 327,921.77

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Solution

The fourth proportional to 612,035.75, 917,490.68 and 327,921.77 is: 491,581.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,035.75 : 917,490.68 = 327,921.77 : x
  2. Step 2: Convert to fraction form
    612,035.75/917,490.68 = 327,921.77/x
  3. Step 3: Cross multiply
    612,035.75x = 917,490.68 × 327,921.77
  4. Step 4: Simplify right side
    612,035.75x = 300,865,169,627.93
  5. Step 5: Solve for x
    x = 300,865,169,627.93/612,035.75
  6. Step 6: Final answer
    x = 491,581.04

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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.