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Finding the Fourth Proportional to 664,995.60, 933,355.80 and 664,995.60

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Solution

The fourth proportional to 664,995.60, 933,355.80 and 664,995.60 is: 933,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,995.60 : 933,355.80 = 664,995.60 : x
  2. Step 2: Convert to fraction form
    664,995.60/933,355.80 = 664,995.60/x
  3. Step 3: Cross multiply
    664,995.60x = 933,355.80 × 664,995.60
  4. Step 4: Simplify right side
    664,995.60x = 620,677,500,234.48
  5. Step 5: Solve for x
    x = 620,677,500,234.48/664,995.60
  6. Step 6: Final answer
    x = 933,355.80

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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 (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.