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Finding the Fourth Proportional to 618,628.82, 932,157.40 and 508,769.60

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Solution

The fourth proportional to 618,628.82, 932,157.40 and 508,769.60 is: 766,620.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,628.82 : 932,157.40 = 508,769.60 : x
  2. Step 2: Convert to fraction form
    618,628.82/932,157.40 = 508,769.60/x
  3. Step 3: Cross multiply
    618,628.82x = 932,157.40 × 508,769.60
  4. Step 4: Simplify right side
    618,628.82x = 474,253,344,991.19
  5. Step 5: Solve for x
    x = 474,253,344,991.19/618,628.82
  6. Step 6: Final answer
    x = 766,620.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.