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Finding the Fourth Proportional to 665,655.40, 998,483.10 and 222,423.40

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Solution

The fourth proportional to 665,655.40, 998,483.10 and 222,423.40 is: 333,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,655.40 : 998,483.10 = 222,423.40 : x
  2. Step 2: Convert to fraction form
    665,655.40/998,483.10 = 222,423.40/x
  3. Step 3: Cross multiply
    665,655.40x = 998,483.10 × 222,423.40
  4. Step 4: Simplify right side
    665,655.40x = 222,086,005,944.54
  5. Step 5: Solve for x
    x = 222,086,005,944.54/665,655.40
  6. Step 6: Final answer
    x = 333,635.10

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Half scale
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Double scale
Find fourth proportional to 665,656.40, 998,484.60 and 222,424.40
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.