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Finding the Fourth Proportional to 940,224, 1,409,402.88 and 440,693.76

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Solution

The fourth proportional to 940,224, 1,409,402.88 and 440,693.76 is: 660,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,224 : 1,409,402.88 = 440,693.76 : x
  2. Step 2: Convert to fraction form
    940,224/1,409,402.88 = 440,693.76/x
  3. Step 3: Cross multiply
    940,224x = 1,409,402.88 × 440,693.76
  4. Step 4: Simplify right side
    940,224x = 621,115,054,542.03
  5. Step 5: Solve for x
    x = 621,115,054,542.03/940,224
  6. Step 6: Final answer
    x = 660,603.28

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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.