Home / 1,287,068.74-1,930,603.11-755,627.74

Finding the Fourth Proportional to 1,287,068.74, 1,930,603.11 and 755,627.74

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Solution

The fourth proportional to 1,287,068.74, 1,930,603.11 and 755,627.74 is: 1,133,441.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,068.74 : 1,930,603.11 = 755,627.74 : x
  2. Step 2: Convert to fraction form
    1,287,068.74/1,930,603.11 = 755,627.74/x
  3. Step 3: Cross multiply
    1,287,068.74x = 1,930,603.11 × 755,627.74
  4. Step 4: Simplify right side
    1,287,068.74x = 1,458,817,257,186.16
  5. Step 5: Solve for x
    x = 1,458,817,257,186.16/1,287,068.74
  6. Step 6: Final answer
    x = 1,133,441.61

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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.