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Finding the Fourth Proportional to 618,398.57, 927,730.91 and 191,926.28

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Solution

The fourth proportional to 618,398.57, 927,730.91 and 191,926.28 is: 287,930.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,398.57 : 927,730.91 = 191,926.28 : x
  2. Step 2: Convert to fraction form
    618,398.57/927,730.91 = 191,926.28/x
  3. Step 3: Cross multiply
    618,398.57x = 927,730.91 × 191,926.28
  4. Step 4: Simplify right side
    618,398.57x = 178,055,945,196.46
  5. Step 5: Solve for x
    x = 178,055,945,196.46/618,398.57
  6. Step 6: Final answer
    x = 287,930.72

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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.