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Finding the Fourth Proportional to 373,875.18, 515,886.87 and 220,892.22

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Solution

The fourth proportional to 373,875.18, 515,886.87 and 220,892.22 is: 304,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,875.18 : 515,886.87 = 220,892.22 : x
  2. Step 2: Convert to fraction form
    373,875.18/515,886.87 = 220,892.22/x
  3. Step 3: Cross multiply
    373,875.18x = 515,886.87 × 220,892.22
  4. Step 4: Simplify right side
    373,875.18x = 113,955,395,983.15
  5. Step 5: Solve for x
    x = 113,955,395,983.15/373,875.18
  6. Step 6: Final answer
    x = 304,795.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.