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Finding the Fourth Proportional to 439,523.35, 606,619.91 and 258,235.22

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Solution

The fourth proportional to 439,523.35, 606,619.91 and 258,235.22 is: 356,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,523.35 : 606,619.91 = 258,235.22 : x
  2. Step 2: Convert to fraction form
    439,523.35/606,619.91 = 258,235.22/x
  3. Step 3: Cross multiply
    439,523.35x = 606,619.91 × 258,235.22
  4. Step 4: Simplify right side
    439,523.35x = 156,650,628,077.37
  5. Step 5: Solve for x
    x = 156,650,628,077.37/439,523.35
  6. Step 6: Final answer
    x = 356,410.25

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1.5x scale

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.