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Finding the Fourth Proportional to 539,556.40, 809,431.80 and 224,045.20

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Solution

The fourth proportional to 539,556.40, 809,431.80 and 224,045.20 is: 336,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,556.40 : 809,431.80 = 224,045.20 : x
  2. Step 2: Convert to fraction form
    539,556.40/809,431.80 = 224,045.20/x
  3. Step 3: Cross multiply
    539,556.40x = 809,431.80 × 224,045.20
  4. Step 4: Simplify right side
    539,556.40x = 181,349,309,517.36
  5. Step 5: Solve for x
    x = 181,349,309,517.36/539,556.40
  6. Step 6: Final answer
    x = 336,108.16

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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.