Home / 1,189,261.26-1,783,876.38-290,710.89

Finding the Fourth Proportional to 1,189,261.26, 1,783,876.38 and 290,710.89

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Solution

The fourth proportional to 1,189,261.26, 1,783,876.38 and 290,710.89 is: 436,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,261.26 : 1,783,876.38 = 290,710.89 : x
  2. Step 2: Convert to fraction form
    1,189,261.26/1,783,876.38 = 290,710.89/x
  3. Step 3: Cross multiply
    1,189,261.26x = 1,783,876.38 × 290,710.89
  4. Step 4: Simplify right side
    1,189,261.26x = 518,592,290,079.78
  5. Step 5: Solve for x
    x = 518,592,290,079.78/1,189,261.26
  6. Step 6: Final answer
    x = 436,062.54

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Double scale
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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.