Home / 1,272,531.89-1,756,127.58-691,794.11

Finding the Fourth Proportional to 1,272,531.89, 1,756,127.58 and 691,794.11

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Solution

The fourth proportional to 1,272,531.89, 1,756,127.58 and 691,794.11 is: 954,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,531.89 : 1,756,127.58 = 691,794.11 : x
  2. Step 2: Convert to fraction form
    1,272,531.89/1,756,127.58 = 691,794.11/x
  3. Step 3: Cross multiply
    1,272,531.89x = 1,756,127.58 × 691,794.11
  4. Step 4: Simplify right side
    1,272,531.89x = 1,214,878,716,252.55
  5. Step 5: Solve for x
    x = 1,214,878,716,252.55/1,272,531.89
  6. Step 6: Final answer
    x = 954,694.12

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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.