Home / 611,788.20-917,682.30-191,106.60

Finding the Fourth Proportional to 611,788.20, 917,682.30 and 191,106.60

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Solution

The fourth proportional to 611,788.20, 917,682.30 and 191,106.60 is: 286,659.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,788.20 : 917,682.30 = 191,106.60 : x
  2. Step 2: Convert to fraction form
    611,788.20/917,682.30 = 191,106.60/x
  3. Step 3: Cross multiply
    611,788.20x = 917,682.30 × 191,106.60
  4. Step 4: Simplify right side
    611,788.20x = 175,375,144,233.18
  5. Step 5: Solve for x
    x = 175,375,144,233.18/611,788.20
  6. Step 6: Final answer
    x = 286,659.90

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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.