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Finding the Fourth Proportional to 663,133.90, 994,117.65 and 397,000.30

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Solution

The fourth proportional to 663,133.90, 994,117.65 and 397,000.30 is: 595,151.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,133.90 : 994,117.65 = 397,000.30 : x
  2. Step 2: Convert to fraction form
    663,133.90/994,117.65 = 397,000.30/x
  3. Step 3: Cross multiply
    663,133.90x = 994,117.65 × 397,000.30
  4. Step 4: Simplify right side
    663,133.90x = 394,665,005,285.30
  5. Step 5: Solve for x
    x = 394,665,005,285.30/663,133.90
  6. Step 6: Final answer
    x = 595,151.30

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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.