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Finding the Fourth Proportional to 539,779.36, 809,613.40 and 179,911.33

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Solution

The fourth proportional to 539,779.36, 809,613.40 and 179,911.33 is: 269,848.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,779.36 : 809,613.40 = 179,911.33 : x
  2. Step 2: Convert to fraction form
    539,779.36/809,613.40 = 179,911.33/x
  3. Step 3: Cross multiply
    539,779.36x = 809,613.40 × 179,911.33
  4. Step 4: Simplify right side
    539,779.36x = 145,658,623,579.82
  5. Step 5: Solve for x
    x = 145,658,623,579.82/539,779.36
  6. Step 6: Final answer
    x = 269,848.45

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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.