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Finding the Fourth Proportional to 308,542.35, 425,780.24 and 174,406.35

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Solution

The fourth proportional to 308,542.35, 425,780.24 and 174,406.35 is: 240,676.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,542.35 : 425,780.24 = 174,406.35 : x
  2. Step 2: Convert to fraction form
    308,542.35/425,780.24 = 174,406.35/x
  3. Step 3: Cross multiply
    308,542.35x = 425,780.24 × 174,406.35
  4. Step 4: Simplify right side
    308,542.35x = 74,258,776,688.49
  5. Step 5: Solve for x
    x = 74,258,776,688.49/308,542.35
  6. Step 6: Final answer
    x = 240,676.12

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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.