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Finding the Fourth Proportional to 722,563.01, 996,881.30 and 431,972.90

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Solution

The fourth proportional to 722,563.01, 996,881.30 and 431,972.90 is: 595,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,563.01 : 996,881.30 = 431,972.90 : x
  2. Step 2: Convert to fraction form
    722,563.01/996,881.30 = 431,972.90/x
  3. Step 3: Cross multiply
    722,563.01x = 996,881.30 × 431,972.90
  4. Step 4: Simplify right side
    722,563.01x = 430,625,705,545.63
  5. Step 5: Solve for x
    x = 430,625,705,545.63/722,563.01
  6. Step 6: Final answer
    x = 595,969.77

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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.