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Finding the Fourth Proportional to 617,904.30, 926,856.45 and 262,929.90

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Solution

The fourth proportional to 617,904.30, 926,856.45 and 262,929.90 is: 394,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,904.30 : 926,856.45 = 262,929.90 : x
  2. Step 2: Convert to fraction form
    617,904.30/926,856.45 = 262,929.90/x
  3. Step 3: Cross multiply
    617,904.30x = 926,856.45 × 262,929.90
  4. Step 4: Simplify right side
    617,904.30x = 243,698,273,712.86
  5. Step 5: Solve for x
    x = 243,698,273,712.86/617,904.30
  6. Step 6: Final answer
    x = 394,394.85

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Similar ratio
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1.5x scale

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.