Home / 519,121.40-778,536.30-164,244.20

Finding the Fourth Proportional to 519,121.40, 778,536.30 and 164,244.20

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Solution

The fourth proportional to 519,121.40, 778,536.30 and 164,244.20 is: 246,320.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,121.40 : 778,536.30 = 164,244.20 : x
  2. Step 2: Convert to fraction form
    519,121.40/778,536.30 = 164,244.20/x
  3. Step 3: Cross multiply
    519,121.40x = 778,536.30 × 164,244.20
  4. Step 4: Simplify right side
    519,121.40x = 127,870,071,764.46
  5. Step 5: Solve for x
    x = 127,870,071,764.46/519,121.40
  6. Step 6: Final answer
    x = 246,320.17

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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.