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Finding the Fourth Proportional to 302,603.10, 453,904.65 and 255,363.90

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Solution

The fourth proportional to 302,603.10, 453,904.65 and 255,363.90 is: 383,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,603.10 : 453,904.65 = 255,363.90 : x
  2. Step 2: Convert to fraction form
    302,603.10/453,904.65 = 255,363.90/x
  3. Step 3: Cross multiply
    302,603.10x = 453,904.65 × 255,363.90
  4. Step 4: Simplify right side
    302,603.10x = 115,910,861,652.14
  5. Step 5: Solve for x
    x = 115,910,861,652.14/302,603.10
  6. Step 6: Final answer
    x = 383,045.85

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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.