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Finding the Fourth Proportional to 439,800.48, 606,549.60 and 338,072.40

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Solution

The fourth proportional to 439,800.48, 606,549.60 and 338,072.40 is: 466,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,800.48 : 606,549.60 = 338,072.40 : x
  2. Step 2: Convert to fraction form
    439,800.48/606,549.60 = 338,072.40/x
  3. Step 3: Cross multiply
    439,800.48x = 606,549.60 × 338,072.40
  4. Step 4: Simplify right side
    439,800.48x = 205,057,678,991.04
  5. Step 5: Solve for x
    x = 205,057,678,991.04/439,800.48
  6. Step 6: Final answer
    x = 466,251.60

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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.