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Finding the Fourth Proportional to 539,108.40, 808,662.60 and 414,692.40

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Solution

The fourth proportional to 539,108.40, 808,662.60 and 414,692.40 is: 622,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,108.40 : 808,662.60 = 414,692.40 : x
  2. Step 2: Convert to fraction form
    539,108.40/808,662.60 = 414,692.40/x
  3. Step 3: Cross multiply
    539,108.40x = 808,662.60 × 414,692.40
  4. Step 4: Simplify right side
    539,108.40x = 335,346,234,384.24
  5. Step 5: Solve for x
    x = 335,346,234,384.24/539,108.40
  6. Step 6: Final answer
    x = 622,038.60

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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.