Home / 439,872.18-607,021.47-238,668.18

Finding the Fourth Proportional to 439,872.18, 607,021.47 and 238,668.18

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Solution

The fourth proportional to 439,872.18, 607,021.47 and 238,668.18 is: 329,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,872.18 : 607,021.47 = 238,668.18 : x
  2. Step 2: Convert to fraction form
    439,872.18/607,021.47 = 238,668.18/x
  3. Step 3: Cross multiply
    439,872.18x = 607,021.47 × 238,668.18
  4. Step 4: Simplify right side
    439,872.18x = 144,876,709,465.83
  5. Step 5: Solve for x
    x = 144,876,709,465.83/439,872.18
  6. Step 6: Final answer
    x = 329,360.93

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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.