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Finding the Fourth Proportional to 617,564.60, 926,346.90 and 611,659.70

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Solution

The fourth proportional to 617,564.60, 926,346.90 and 611,659.70 is: 917,489.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,564.60 : 926,346.90 = 611,659.70 : x
  2. Step 2: Convert to fraction form
    617,564.60/926,346.90 = 611,659.70/x
  3. Step 3: Cross multiply
    617,564.60x = 926,346.90 × 611,659.70
  4. Step 4: Simplify right side
    617,564.60x = 566,609,066,949.93
  5. Step 5: Solve for x
    x = 566,609,066,949.93/617,564.60
  6. Step 6: Final answer
    x = 917,489.55

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Similar ratio
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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.