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Finding the Fourth Proportional to 573,653.60, 860,869.20 and 373,486.40

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Solution

The fourth proportional to 573,653.60, 860,869.20 and 373,486.40 is: 560,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,653.60 : 860,869.20 = 373,486.40 : x
  2. Step 2: Convert to fraction form
    573,653.60/860,869.20 = 373,486.40/x
  3. Step 3: Cross multiply
    573,653.60x = 860,869.20 × 373,486.40
  4. Step 4: Simplify right side
    573,653.60x = 321,522,938,378.88
  5. Step 5: Solve for x
    x = 321,522,938,378.88/573,653.60
  6. Step 6: Final answer
    x = 560,482.73

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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.