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Finding the Fourth Proportional to 354,699.60, 532,049.40 and 322,040.40

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Solution

The fourth proportional to 354,699.60, 532,049.40 and 322,040.40 is: 483,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,699.60 : 532,049.40 = 322,040.40 : x
  2. Step 2: Convert to fraction form
    354,699.60/532,049.40 = 322,040.40/x
  3. Step 3: Cross multiply
    354,699.60x = 532,049.40 × 322,040.40
  4. Step 4: Simplify right side
    354,699.60x = 171,341,401,595.76
  5. Step 5: Solve for x
    x = 171,341,401,595.76/354,699.60
  6. Step 6: Final answer
    x = 483,060.60

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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.