Home / 1,438,571.76-1,985,293.80-826,923.12

Finding the Fourth Proportional to 1,438,571.76, 1,985,293.80 and 826,923.12

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Solution

The fourth proportional to 1,438,571.76, 1,985,293.80 and 826,923.12 is: 1,141,191.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,571.76 : 1,985,293.80 = 826,923.12 : x
  2. Step 2: Convert to fraction form
    1,438,571.76/1,985,293.80 = 826,923.12/x
  3. Step 3: Cross multiply
    1,438,571.76x = 1,985,293.80 × 826,923.12
  4. Step 4: Simplify right side
    1,438,571.76x = 1,641,685,343,212.66
  5. Step 5: Solve for x
    x = 1,641,685,343,212.66/1,438,571.76
  6. Step 6: Final answer
    x = 1,141,191.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.