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Finding the Fourth Proportional to 539,259.90, 808,889.85 and 414,843.90

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Solution

The fourth proportional to 539,259.90, 808,889.85 and 414,843.90 is: 622,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,259.90 : 808,889.85 = 414,843.90 : x
  2. Step 2: Convert to fraction form
    539,259.90/808,889.85 = 414,843.90/x
  3. Step 3: Cross multiply
    539,259.90x = 808,889.85 × 414,843.90
  4. Step 4: Simplify right side
    539,259.90x = 335,563,020,044.42
  5. Step 5: Solve for x
    x = 335,563,020,044.42/539,259.90
  6. Step 6: Final answer
    x = 622,265.85

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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.