Home / 664,867.18-997,300.77-166,231.18

Finding the Fourth Proportional to 664,867.18, 997,300.77 and 166,231.18

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Solution

The fourth proportional to 664,867.18, 997,300.77 and 166,231.18 is: 249,346.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,867.18 : 997,300.77 = 166,231.18 : x
  2. Step 2: Convert to fraction form
    664,867.18/997,300.77 = 166,231.18/x
  3. Step 3: Cross multiply
    664,867.18x = 997,300.77 × 166,231.18
  4. Step 4: Simplify right side
    664,867.18x = 165,782,483,812.01
  5. Step 5: Solve for x
    x = 165,782,483,812.01/664,867.18
  6. Step 6: Final answer
    x = 249,346.77

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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.