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Finding the Fourth Proportional to 539,200.90, 808,801.35 and 414,784.90

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Solution

The fourth proportional to 539,200.90, 808,801.35 and 414,784.90 is: 622,177.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,200.90 : 808,801.35 = 414,784.90 : x
  2. Step 2: Convert to fraction form
    539,200.90/808,801.35 = 414,784.90/x
  3. Step 3: Cross multiply
    539,200.90x = 808,801.35 × 414,784.90
  4. Step 4: Simplify right side
    539,200.90x = 335,478,587,079.62
  5. Step 5: Solve for x
    x = 335,478,587,079.62/539,200.90
  6. Step 6: Final answer
    x = 622,177.35

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Half scale
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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.