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Finding the Fourth Proportional to 439,898.30, 607,066.73 and 238,694.30

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Solution

The fourth proportional to 439,898.30, 607,066.73 and 238,694.30 is: 329,401.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,898.30 : 607,066.73 = 238,694.30 : x
  2. Step 2: Convert to fraction form
    439,898.30/607,066.73 = 238,694.30/x
  3. Step 3: Cross multiply
    439,898.30x = 607,066.73 × 238,694.30
  4. Step 4: Simplify right side
    439,898.30x = 144,903,368,170.64
  5. Step 5: Solve for x
    x = 144,903,368,170.64/439,898.30
  6. Step 6: Final answer
    x = 329,401.97

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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.