Home / 917,556.80-1,376,335.20-664,302.20

Finding the Fourth Proportional to 917,556.80, 1,376,335.20 and 664,302.20

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Solution

The fourth proportional to 917,556.80, 1,376,335.20 and 664,302.20 is: 996,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,556.80 : 1,376,335.20 = 664,302.20 : x
  2. Step 2: Convert to fraction form
    917,556.80/1,376,335.20 = 664,302.20/x
  3. Step 3: Cross multiply
    917,556.80x = 1,376,335.20 × 664,302.20
  4. Step 4: Simplify right side
    917,556.80x = 914,302,501,297.44
  5. Step 5: Solve for x
    x = 914,302,501,297.44/917,556.80
  6. Step 6: Final answer
    x = 996,453.30

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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.