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Finding the Fourth Proportional to 522,468.55, 721,014.35 and 304,671.18

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Solution

The fourth proportional to 522,468.55, 721,014.35 and 304,671.18 is: 420,450.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,468.55 : 721,014.35 = 304,671.18 : x
  2. Step 2: Convert to fraction form
    522,468.55/721,014.35 = 304,671.18/x
  3. Step 3: Cross multiply
    522,468.55x = 721,014.35 × 304,671.18
  4. Step 4: Simplify right side
    522,468.55x = 219,672,292,811.43
  5. Step 5: Solve for x
    x = 219,672,292,811.43/522,468.55
  6. Step 6: Final answer
    x = 420,450.75

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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.