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Finding the Fourth Proportional to 539,226.90, 808,840.35 and 414,810.90

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Solution

The fourth proportional to 539,226.90, 808,840.35 and 414,810.90 is: 622,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,226.90 : 808,840.35 = 414,810.90 : x
  2. Step 2: Convert to fraction form
    539,226.90/808,840.35 = 414,810.90/x
  3. Step 3: Cross multiply
    539,226.90x = 808,840.35 × 414,810.90
  4. Step 4: Simplify right side
    539,226.90x = 335,515,793,539.82
  5. Step 5: Solve for x
    x = 335,515,793,539.82/539,226.90
  6. Step 6: Final answer
    x = 622,216.35

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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.