Home / 923,556.42-1,274,495.78-515,665.20

Finding the Fourth Proportional to 923,556.42, 1,274,495.78 and 515,665.20

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Solution

The fourth proportional to 923,556.42, 1,274,495.78 and 515,665.20 is: 711,611.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,556.42 : 1,274,495.78 = 515,665.20 : x
  2. Step 2: Convert to fraction form
    923,556.42/1,274,495.78 = 515,665.20/x
  3. Step 3: Cross multiply
    923,556.42x = 1,274,495.78 × 515,665.20
  4. Step 4: Simplify right side
    923,556.42x = 657,213,121,292.86
  5. Step 5: Solve for x
    x = 657,213,121,292.86/923,556.42
  6. Step 6: Final answer
    x = 711,611.23

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Double scale
Find fourth proportional to 923,557.42, 1,274,497.16 and 515,666.20
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.