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Finding the Fourth Proportional to 617,935.40, 926,903.10 and 219,026.60

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Solution

The fourth proportional to 617,935.40, 926,903.10 and 219,026.60 is: 328,539.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,935.40 : 926,903.10 = 219,026.60 : x
  2. Step 2: Convert to fraction form
    617,935.40/926,903.10 = 219,026.60/x
  3. Step 3: Cross multiply
    617,935.40x = 926,903.10 × 219,026.60
  4. Step 4: Simplify right side
    617,935.40x = 203,016,434,522.46
  5. Step 5: Solve for x
    x = 203,016,434,522.46/617,935.40
  6. Step 6: Final answer
    x = 328,539.90

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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.