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Finding the Fourth Proportional to 600,781.12, 829,021.76 and 359,015.68

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Solution

The fourth proportional to 600,781.12, 829,021.76 and 359,015.68 is: 495,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    600,781.12 : 829,021.76 = 359,015.68 : x
  2. Step 2: Convert to fraction form
    600,781.12/829,021.76 = 359,015.68/x
  3. Step 3: Cross multiply
    600,781.12x = 829,021.76 × 359,015.68
  4. Step 4: Simplify right side
    600,781.12x = 297,631,810,901.20
  5. Step 5: Solve for x
    x = 297,631,810,901.20/600,781.12
  6. Step 6: Final answer
    x = 495,408.06

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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.