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Finding the Fourth Proportional to 617,930.90, 926,896.35 and 219,022.10

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Solution

The fourth proportional to 617,930.90, 926,896.35 and 219,022.10 is: 328,533.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,930.90 : 926,896.35 = 219,022.10 : x
  2. Step 2: Convert to fraction form
    617,930.90/926,896.35 = 219,022.10/x
  3. Step 3: Cross multiply
    617,930.90x = 926,896.35 × 219,022.10
  4. Step 4: Simplify right side
    617,930.90x = 203,010,785,059.34
  5. Step 5: Solve for x
    x = 203,010,785,059.34/617,930.90
  6. Step 6: Final answer
    x = 328,533.15

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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.