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Finding the Fourth Proportional to 613,534.30, 920,347.62 and 164,245.22

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Solution

The fourth proportional to 613,534.30, 920,347.62 and 164,245.22 is: 246,380.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,534.30 : 920,347.62 = 164,245.22 : x
  2. Step 2: Convert to fraction form
    613,534.30/920,347.62 = 164,245.22/x
  3. Step 3: Cross multiply
    613,534.30x = 920,347.62 × 164,245.22
  4. Step 4: Simplify right side
    613,534.30x = 151,162,695,557.02
  5. Step 5: Solve for x
    x = 151,162,695,557.02/613,534.30
  6. Step 6: Final answer
    x = 246,380.19

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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.