Home / 617,905.40-926,858.10-218,996.60

Finding the Fourth Proportional to 617,905.40, 926,858.10 and 218,996.60

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Solution

The fourth proportional to 617,905.40, 926,858.10 and 218,996.60 is: 328,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,905.40 : 926,858.10 = 218,996.60 : x
  2. Step 2: Convert to fraction form
    617,905.40/926,858.10 = 218,996.60/x
  3. Step 3: Cross multiply
    617,905.40x = 926,858.10 × 218,996.60
  4. Step 4: Simplify right side
    617,905.40x = 202,978,772,582.46
  5. Step 5: Solve for x
    x = 202,978,772,582.46/617,905.40
  6. Step 6: Final answer
    x = 328,494.90

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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.