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Finding the Fourth Proportional to 664,767.56, 997,151.40 and 166,131.56

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Solution

The fourth proportional to 664,767.56, 997,151.40 and 166,131.56 is: 249,197.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,767.56 : 997,151.40 = 166,131.56 : x
  2. Step 2: Convert to fraction form
    664,767.56/997,151.40 = 166,131.56/x
  3. Step 3: Cross multiply
    664,767.56x = 997,151.40 × 166,131.56
  4. Step 4: Simplify right side
    664,767.56x = 165,658,317,638.18
  5. Step 5: Solve for x
    x = 165,658,317,638.18/664,767.56
  6. Step 6: Final answer
    x = 249,197.35

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Double scale
Find fourth proportional to 664,768.56, 997,152.90 and 166,132.56
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.