Home / 1,200,500.64-1,656,743.94-691,367.04

Finding the Fourth Proportional to 1,200,500.64, 1,656,743.94 and 691,367.04

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Solution

The fourth proportional to 1,200,500.64, 1,656,743.94 and 691,367.04 is: 954,117.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,500.64 : 1,656,743.94 = 691,367.04 : x
  2. Step 2: Convert to fraction form
    1,200,500.64/1,656,743.94 = 691,367.04/x
  3. Step 3: Cross multiply
    1,200,500.64x = 1,656,743.94 × 691,367.04
  4. Step 4: Simplify right side
    1,200,500.64x = 1,145,418,153,835.74
  5. Step 5: Solve for x
    x = 1,145,418,153,835.74/1,200,500.64
  6. Step 6: Final answer
    x = 954,117.07

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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.