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Finding the Fourth Proportional to 308,542.77, 425,783.39 and 174,406.77

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Solution

The fourth proportional to 308,542.77, 425,783.39 and 174,406.77 is: 240,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,542.77 : 425,783.39 = 174,406.77 : x
  2. Step 2: Convert to fraction form
    308,542.77/425,783.39 = 174,406.77/x
  3. Step 3: Cross multiply
    308,542.77x = 425,783.39 × 174,406.77
  4. Step 4: Simplify right side
    308,542.77x = 74,259,504,897.52
  5. Step 5: Solve for x
    x = 74,259,504,897.52/308,542.77
  6. Step 6: Final answer
    x = 240,678.16

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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.