Home / 1,172,554.50-1,758,383.39-639,790.74

Finding the Fourth Proportional to 1,172,554.50, 1,758,383.39 and 639,790.74

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Solution

The fourth proportional to 1,172,554.50, 1,758,383.39 and 639,790.74 is: 959,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,554.50 : 1,758,383.39 = 639,790.74 : x
  2. Step 2: Convert to fraction form
    1,172,554.50/1,758,383.39 = 639,790.74/x
  3. Step 3: Cross multiply
    1,172,554.50x = 1,758,383.39 × 639,790.74
  4. Step 4: Simplify right side
    1,172,554.50x = 1,124,997,410,291.81
  5. Step 5: Solve for x
    x = 1,124,997,410,291.81/1,172,554.50
  6. Step 6: Final answer
    x = 959,441.47

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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.