Home / 1,289,305.41-1,931,300.28-755,207.19

Finding the Fourth Proportional to 1,289,305.41, 1,931,300.28 and 755,207.19

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Solution

The fourth proportional to 1,289,305.41, 1,931,300.28 and 755,207.19 is: 1,131,253.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,305.41 : 1,931,300.28 = 755,207.19 : x
  2. Step 2: Convert to fraction form
    1,289,305.41/1,931,300.28 = 755,207.19/x
  3. Step 3: Cross multiply
    1,289,305.41x = 1,931,300.28 × 755,207.19
  4. Step 4: Simplify right side
    1,289,305.41x = 1,458,531,857,505.01
  5. Step 5: Solve for x
    x = 1,458,531,857,505.01/1,289,305.41
  6. Step 6: Final answer
    x = 1,131,253.97

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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.