Home / 651,610.12-899,220.76-396,961.32

Finding the Fourth Proportional to 651,610.12, 899,220.76 and 396,961.32

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Solution

The fourth proportional to 651,610.12, 899,220.76 and 396,961.32 is: 547,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,610.12 : 899,220.76 = 396,961.32 : x
  2. Step 2: Convert to fraction form
    651,610.12/899,220.76 = 396,961.32/x
  3. Step 3: Cross multiply
    651,610.12x = 899,220.76 × 396,961.32
  4. Step 4: Simplify right side
    651,610.12x = 356,955,859,861.00
  5. Step 5: Solve for x
    x = 356,955,859,861.00/651,610.12
  6. Step 6: Final answer
    x = 547,805.89

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.