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Finding the Fourth Proportional to 664,468.80, 996,703.20 and 585,736.80

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Solution

The fourth proportional to 664,468.80, 996,703.20 and 585,736.80 is: 878,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,468.80 : 996,703.20 = 585,736.80 : x
  2. Step 2: Convert to fraction form
    664,468.80/996,703.20 = 585,736.80/x
  3. Step 3: Cross multiply
    664,468.80x = 996,703.20 × 585,736.80
  4. Step 4: Simplify right side
    664,468.80x = 583,805,742,917.76
  5. Step 5: Solve for x
    x = 583,805,742,917.76/664,468.80
  6. Step 6: Final answer
    x = 878,605.20

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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.