Home / 1,276,992.19-1,915,495.12-378,441.71

Finding the Fourth Proportional to 1,276,992.19, 1,915,495.12 and 378,441.71

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Solution

The fourth proportional to 1,276,992.19, 1,915,495.12 and 378,441.71 is: 567,664.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,992.19 : 1,915,495.12 = 378,441.71 : x
  2. Step 2: Convert to fraction form
    1,276,992.19/1,915,495.12 = 378,441.71/x
  3. Step 3: Cross multiply
    1,276,992.19x = 1,915,495.12 × 378,441.71
  4. Step 4: Simplify right side
    1,276,992.19x = 724,903,239,131.98
  5. Step 5: Solve for x
    x = 724,903,239,131.98/1,276,992.19
  6. Step 6: Final answer
    x = 567,664.59

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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.