Home / 1,272,585.40-1,756,179.26-691,809.66

Finding the Fourth Proportional to 1,272,585.40, 1,756,179.26 and 691,809.66

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Solution

The fourth proportional to 1,272,585.40, 1,756,179.26 and 691,809.66 is: 954,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,585.40 : 1,756,179.26 = 691,809.66 : x
  2. Step 2: Convert to fraction form
    1,272,585.40/1,756,179.26 = 691,809.66/x
  3. Step 3: Cross multiply
    1,272,585.40x = 1,756,179.26 × 691,809.66
  4. Step 4: Simplify right side
    1,272,585.40x = 1,214,941,775,894.89
  5. Step 5: Solve for x
    x = 1,214,941,775,894.89/1,272,585.40
  6. Step 6: Final answer
    x = 954,703.53

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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.