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Finding the Fourth Proportional to 574,421.18, 860,348.73 and 416,286.50

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Solution

The fourth proportional to 574,421.18, 860,348.73 and 416,286.50 is: 623,499.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,421.18 : 860,348.73 = 416,286.50 : x
  2. Step 2: Convert to fraction form
    574,421.18/860,348.73 = 416,286.50/x
  3. Step 3: Cross multiply
    574,421.18x = 860,348.73 × 416,286.50
  4. Step 4: Simplify right side
    574,421.18x = 358,151,561,591.15
  5. Step 5: Solve for x
    x = 358,151,561,591.15/574,421.18
  6. Step 6: Final answer
    x = 623,499.92

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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.