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Finding the Fourth Proportional to 447,809.28, 618,004.92 and 246,605.28

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Solution

The fourth proportional to 447,809.28, 618,004.92 and 246,605.28 is: 340,330.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,809.28 : 618,004.92 = 246,605.28 : x
  2. Step 2: Convert to fraction form
    447,809.28/618,004.92 = 246,605.28/x
  3. Step 3: Cross multiply
    447,809.28x = 618,004.92 × 246,605.28
  4. Step 4: Simplify right side
    447,809.28x = 152,403,276,337.98
  5. Step 5: Solve for x
    x = 152,403,276,337.98/447,809.28
  6. Step 6: Final answer
    x = 340,330.77

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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.