Home / 439,914.72-607,083.36-238,710.72

Finding the Fourth Proportional to 439,914.72, 607,083.36 and 238,710.72

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Solution

The fourth proportional to 439,914.72, 607,083.36 and 238,710.72 is: 329,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,914.72 : 607,083.36 = 238,710.72 : x
  2. Step 2: Convert to fraction form
    439,914.72/607,083.36 = 238,710.72/x
  3. Step 3: Cross multiply
    439,914.72x = 607,083.36 × 238,710.72
  4. Step 4: Simplify right side
    439,914.72x = 144,917,305,965.62
  5. Step 5: Solve for x
    x = 144,917,305,965.62/439,914.72
  6. Step 6: Final answer
    x = 329,421.36

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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.