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Finding the Fourth Proportional to 723,991.23, 999,134.73 and 437,455.89

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Solution

The fourth proportional to 723,991.23, 999,134.73 and 437,455.89 is: 603,705.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,991.23 : 999,134.73 = 437,455.89 : x
  2. Step 2: Convert to fraction form
    723,991.23/999,134.73 = 437,455.89/x
  3. Step 3: Cross multiply
    723,991.23x = 999,134.73 × 437,455.89
  4. Step 4: Simplify right side
    723,991.23x = 437,077,372,542.06
  5. Step 5: Solve for x
    x = 437,077,372,542.06/723,991.23
  6. Step 6: Final answer
    x = 603,705.34

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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.