Home / 865,065.47-1,296,859.28-611,548.43

Finding the Fourth Proportional to 865,065.47, 1,296,859.28 and 611,548.43

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Solution

The fourth proportional to 865,065.47, 1,296,859.28 and 611,548.43 is: 916,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,065.47 : 1,296,859.28 = 611,548.43 : x
  2. Step 2: Convert to fraction form
    865,065.47/1,296,859.28 = 611,548.43/x
  3. Step 3: Cross multiply
    865,065.47x = 1,296,859.28 × 611,548.43
  4. Step 4: Simplify right side
    865,065.47x = 793,092,251,843.91
  5. Step 5: Solve for x
    x = 793,092,251,843.91/865,065.47
  6. Step 6: Final answer
    x = 916,800.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.