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Finding the Fourth Proportional to 657,995.28, 986,989.60 and 159,359.28

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Solution

The fourth proportional to 657,995.28, 986,989.60 and 159,359.28 is: 239,038.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,995.28 : 986,989.60 = 159,359.28 : x
  2. Step 2: Convert to fraction form
    657,995.28/986,989.60 = 159,359.28/x
  3. Step 3: Cross multiply
    657,995.28x = 986,989.60 × 159,359.28
  4. Step 4: Simplify right side
    657,995.28x = 157,285,952,023.49
  5. Step 5: Solve for x
    x = 157,285,952,023.49/657,995.28
  6. Step 6: Final answer
    x = 239,038.12

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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.