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Finding the Fourth Proportional to 617,904.90, 926,857.35 and 262,800.90

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Solution

The fourth proportional to 617,904.90, 926,857.35 and 262,800.90 is: 394,201.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,904.90 : 926,857.35 = 262,800.90 : x
  2. Step 2: Convert to fraction form
    617,904.90/926,857.35 = 262,800.90/x
  3. Step 3: Cross multiply
    617,904.90x = 926,857.35 × 262,800.90
  4. Step 4: Simplify right side
    617,904.90x = 243,578,945,751.62
  5. Step 5: Solve for x
    x = 243,578,945,751.62/617,904.90
  6. Step 6: Final answer
    x = 394,201.35

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Double scale
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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.