Home / 1,235,905.10-1,853,857.65-394,484.30

Finding the Fourth Proportional to 1,235,905.10, 1,853,857.65 and 394,484.30

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Solution

The fourth proportional to 1,235,905.10, 1,853,857.65 and 394,484.30 is: 591,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,905.10 : 1,853,857.65 = 394,484.30 : x
  2. Step 2: Convert to fraction form
    1,235,905.10/1,853,857.65 = 394,484.30/x
  3. Step 3: Cross multiply
    1,235,905.10x = 1,853,857.65 × 394,484.30
  4. Step 4: Simplify right side
    1,235,905.10x = 731,317,737,359.90
  5. Step 5: Solve for x
    x = 731,317,737,359.90/1,235,905.10
  6. Step 6: Final answer
    x = 591,726.45

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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.