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Finding the Fourth Proportional to 618,007.80, 927,702.90 and 577,399.80

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Solution

The fourth proportional to 618,007.80, 927,702.90 and 577,399.80 is: 866,745.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,007.80 : 927,702.90 = 577,399.80 : x
  2. Step 2: Convert to fraction form
    618,007.80/927,702.90 = 577,399.80/x
  3. Step 3: Cross multiply
    618,007.80x = 927,702.90 × 577,399.80
  4. Step 4: Simplify right side
    618,007.80x = 535,655,468,919.42
  5. Step 5: Solve for x
    x = 535,655,468,919.42/618,007.80
  6. Step 6: Final answer
    x = 866,745.48

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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.