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Finding the Fourth Proportional to 355,038.22, 529,430.34 and 351,839.73

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Solution

The fourth proportional to 355,038.22, 529,430.34 and 351,839.73 is: 524,660.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,038.22 : 529,430.34 = 351,839.73 : x
  2. Step 2: Convert to fraction form
    355,038.22/529,430.34 = 351,839.73/x
  3. Step 3: Cross multiply
    355,038.22x = 529,430.34 × 351,839.73
  4. Step 4: Simplify right side
    355,038.22x = 186,274,631,184.17
  5. Step 5: Solve for x
    x = 186,274,631,184.17/355,038.22
  6. Step 6: Final answer
    x = 524,660.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.