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Finding the Fourth Proportional to 308,363.60, 425,533.56 and 174,227.60

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Solution

The fourth proportional to 308,363.60, 425,533.56 and 174,227.60 is: 240,429.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,363.60 : 425,533.56 = 174,227.60 : x
  2. Step 2: Convert to fraction form
    308,363.60/425,533.56 = 174,227.60/x
  3. Step 3: Cross multiply
    308,363.60x = 425,533.56 × 174,227.60
  4. Step 4: Simplify right side
    308,363.60x = 74,139,690,878.26
  5. Step 5: Solve for x
    x = 74,139,690,878.26/308,363.60
  6. Step 6: Final answer
    x = 240,429.45

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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.