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Finding the Fourth Proportional to 608,887.90, 913,331.85 and 165,655.90

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Solution

The fourth proportional to 608,887.90, 913,331.85 and 165,655.90 is: 248,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,887.90 : 913,331.85 = 165,655.90 : x
  2. Step 2: Convert to fraction form
    608,887.90/913,331.85 = 165,655.90/x
  3. Step 3: Cross multiply
    608,887.90x = 913,331.85 × 165,655.90
  4. Step 4: Simplify right side
    608,887.90x = 151,298,809,610.42
  5. Step 5: Solve for x
    x = 151,298,809,610.42/608,887.90
  6. Step 6: Final answer
    x = 248,483.85

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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.