Home / 886,896.03-1,329,998.94-287,712.30

Finding the Fourth Proportional to 886,896.03, 1,329,998.94 and 287,712.30

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Solution

The fourth proportional to 886,896.03, 1,329,998.94 and 287,712.30 is: 431,456.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,896.03 : 1,329,998.94 = 287,712.30 : x
  2. Step 2: Convert to fraction form
    886,896.03/1,329,998.94 = 287,712.30/x
  3. Step 3: Cross multiply
    886,896.03x = 1,329,998.94 × 287,712.30
  4. Step 4: Simplify right side
    886,896.03x = 382,657,054,024.96
  5. Step 5: Solve for x
    x = 382,657,054,024.96/886,896.03
  6. Step 6: Final answer
    x = 431,456.50

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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.