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Finding the Fourth Proportional to 656,820.90, 985,231.35 and 236,139.30

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Solution

The fourth proportional to 656,820.90, 985,231.35 and 236,139.30 is: 354,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,820.90 : 985,231.35 = 236,139.30 : x
  2. Step 2: Convert to fraction form
    656,820.90/985,231.35 = 236,139.30/x
  3. Step 3: Cross multiply
    656,820.90x = 985,231.35 × 236,139.30
  4. Step 4: Simplify right side
    656,820.90x = 232,651,841,327.06
  5. Step 5: Solve for x
    x = 232,651,841,327.06/656,820.90
  6. Step 6: Final answer
    x = 354,208.95

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Double scale
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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.