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Finding the Fourth Proportional to 373,313.10, 559,969.65 and 328,989.90

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Solution

The fourth proportional to 373,313.10, 559,969.65 and 328,989.90 is: 493,484.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,313.10 : 559,969.65 = 328,989.90 : x
  2. Step 2: Convert to fraction form
    373,313.10/559,969.65 = 328,989.90/x
  3. Step 3: Cross multiply
    373,313.10x = 559,969.65 × 328,989.90
  4. Step 4: Simplify right side
    373,313.10x = 184,224,359,156.54
  5. Step 5: Solve for x
    x = 184,224,359,156.54/373,313.10
  6. Step 6: Final answer
    x = 493,484.85

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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.