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Finding the Fourth Proportional to 618,621.60, 927,478.32 and 197,654.88

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Solution

The fourth proportional to 618,621.60, 927,478.32 and 197,654.88 is: 296,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,621.60 : 927,478.32 = 197,654.88 : x
  2. Step 2: Convert to fraction form
    618,621.60/927,478.32 = 197,654.88/x
  3. Step 3: Cross multiply
    618,621.60x = 927,478.32 × 197,654.88
  4. Step 4: Simplify right side
    618,621.60x = 183,320,616,042.20
  5. Step 5: Solve for x
    x = 183,320,616,042.20/618,621.60
  6. Step 6: Final answer
    x = 296,337.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.