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Finding the Fourth Proportional to 573,915.60, 860,873.40 and 363,790.80

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Solution

The fourth proportional to 573,915.60, 860,873.40 and 363,790.80 is: 545,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,915.60 : 860,873.40 = 363,790.80 : x
  2. Step 2: Convert to fraction form
    573,915.60/860,873.40 = 363,790.80/x
  3. Step 3: Cross multiply
    573,915.60x = 860,873.40 × 363,790.80
  4. Step 4: Simplify right side
    573,915.60x = 313,177,822,884.72
  5. Step 5: Solve for x
    x = 313,177,822,884.72/573,915.60
  6. Step 6: Final answer
    x = 545,686.20

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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.