Home / 426,199.20-639,068.40-176,906.40

Finding the Fourth Proportional to 426,199.20, 639,068.40 and 176,906.40

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Solution

The fourth proportional to 426,199.20, 639,068.40 and 176,906.40 is: 265,263.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,199.20 : 639,068.40 = 176,906.40 : x
  2. Step 2: Convert to fraction form
    426,199.20/639,068.40 = 176,906.40/x
  3. Step 3: Cross multiply
    426,199.20x = 639,068.40 × 176,906.40
  4. Step 4: Simplify right side
    426,199.20x = 113,055,289,997.76
  5. Step 5: Solve for x
    x = 113,055,289,997.76/426,199.20
  6. Step 6: Final answer
    x = 265,263.97

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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.