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Finding the Fourth Proportional to 992,626.29, 1,369,768.53 and 557,003.01

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Solution

The fourth proportional to 992,626.29, 1,369,768.53 and 557,003.01 is: 768,632.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,626.29 : 1,369,768.53 = 557,003.01 : x
  2. Step 2: Convert to fraction form
    992,626.29/1,369,768.53 = 557,003.01/x
  3. Step 3: Cross multiply
    992,626.29x = 1,369,768.53 × 557,003.01
  4. Step 4: Simplify right side
    992,626.29x = 762,965,194,213.28
  5. Step 5: Solve for x
    x = 762,965,194,213.28/992,626.29
  6. Step 6: Final answer
    x = 768,632.87

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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.