Home / 1,292,854.77-1,784,138.45-712,081.83

Finding the Fourth Proportional to 1,292,854.77, 1,784,138.45 and 712,081.83

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Solution

The fourth proportional to 1,292,854.77, 1,784,138.45 and 712,081.83 is: 982,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,854.77 : 1,784,138.45 = 712,081.83 : x
  2. Step 2: Convert to fraction form
    1,292,854.77/1,784,138.45 = 712,081.83/x
  3. Step 3: Cross multiply
    1,292,854.77x = 1,784,138.45 × 712,081.83
  4. Step 4: Simplify right side
    1,292,854.77x = 1,270,452,579,584.93
  5. Step 5: Solve for x
    x = 1,270,452,579,584.93/1,292,854.77
  6. Step 6: Final answer
    x = 982,672.31

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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.