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Finding the Fourth Proportional to 617,967.90, 926,951.85 and 219,059.10

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Solution

The fourth proportional to 617,967.90, 926,951.85 and 219,059.10 is: 328,588.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,967.90 : 926,951.85 = 219,059.10 : x
  2. Step 2: Convert to fraction form
    617,967.90/926,951.85 = 219,059.10/x
  3. Step 3: Cross multiply
    617,967.90x = 926,951.85 × 219,059.10
  4. Step 4: Simplify right side
    617,967.90x = 203,057,238,004.34
  5. Step 5: Solve for x
    x = 203,057,238,004.34/617,967.90
  6. Step 6: Final answer
    x = 328,588.65

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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.