Home / 865,664.07-1,298,561.37-258,404.41

Finding the Fourth Proportional to 865,664.07, 1,298,561.37 and 258,404.41

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Solution

The fourth proportional to 865,664.07, 1,298,561.37 and 258,404.41 is: 387,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,664.07 : 1,298,561.37 = 258,404.41 : x
  2. Step 2: Convert to fraction form
    865,664.07/1,298,561.37 = 258,404.41/x
  3. Step 3: Cross multiply
    865,664.07x = 1,298,561.37 × 258,404.41
  4. Step 4: Simplify right side
    865,664.07x = 335,553,985,317.83
  5. Step 5: Solve for x
    x = 335,553,985,317.83/865,664.07
  6. Step 6: Final answer
    x = 387,626.10

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1.5x scale

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.