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Finding the Fourth Proportional to 439,872.30, 607,030.83 and 238,668.30

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Solution

The fourth proportional to 439,872.30, 607,030.83 and 238,668.30 is: 329,366.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,872.30 : 607,030.83 = 238,668.30 : x
  2. Step 2: Convert to fraction form
    439,872.30/607,030.83 = 238,668.30/x
  3. Step 3: Cross multiply
    439,872.30x = 607,030.83 × 238,668.30
  4. Step 4: Simplify right side
    439,872.30x = 144,879,016,243.69
  5. Step 5: Solve for x
    x = 144,879,016,243.69/439,872.30
  6. Step 6: Final answer
    x = 329,366.08

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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.