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Finding the Fourth Proportional to 572,833.20, 860,167.80 and 455,480.40

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Solution

The fourth proportional to 572,833.20, 860,167.80 and 455,480.40 is: 683,950.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,833.20 : 860,167.80 = 455,480.40 : x
  2. Step 2: Convert to fraction form
    572,833.20/860,167.80 = 455,480.40/x
  3. Step 3: Cross multiply
    572,833.20x = 860,167.80 × 455,480.40
  4. Step 4: Simplify right side
    572,833.20x = 391,789,573,611.12
  5. Step 5: Solve for x
    x = 391,789,573,611.12/572,833.20
  6. Step 6: Final answer
    x = 683,950.54

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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.