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Finding the Fourth Proportional to 365,053.19, 546,247.60 and 215,365.19

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Solution

The fourth proportional to 365,053.19, 546,247.60 and 215,365.19 is: 322,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,053.19 : 546,247.60 = 215,365.19 : x
  2. Step 2: Convert to fraction form
    365,053.19/546,247.60 = 215,365.19/x
  3. Step 3: Cross multiply
    365,053.19x = 546,247.60 × 215,365.19
  4. Step 4: Simplify right side
    365,053.19x = 117,642,714,891.39
  5. Step 5: Solve for x
    x = 117,642,714,891.39/365,053.19
  6. Step 6: Final answer
    x = 322,261.85

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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.