Home / 823,390.60-1,235,201.10-350,072.20

Finding the Fourth Proportional to 823,390.60, 1,235,201.10 and 350,072.20

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Solution

The fourth proportional to 823,390.60, 1,235,201.10 and 350,072.20 is: 525,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,390.60 : 1,235,201.10 = 350,072.20 : x
  2. Step 2: Convert to fraction form
    823,390.60/1,235,201.10 = 350,072.20/x
  3. Step 3: Cross multiply
    823,390.60x = 1,235,201.10 × 350,072.20
  4. Step 4: Simplify right side
    823,390.60x = 432,409,566,519.42
  5. Step 5: Solve for x
    x = 432,409,566,519.42/823,390.60
  6. Step 6: Final answer
    x = 525,157.28

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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.