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Finding the Fourth Proportional to 573,764.40, 860,646.60 and 345,441.60

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Solution

The fourth proportional to 573,764.40, 860,646.60 and 345,441.60 is: 518,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,764.40 : 860,646.60 = 345,441.60 : x
  2. Step 2: Convert to fraction form
    573,764.40/860,646.60 = 345,441.60/x
  3. Step 3: Cross multiply
    573,764.40x = 860,646.60 × 345,441.60
  4. Step 4: Simplify right side
    573,764.40x = 297,303,138,538.56
  5. Step 5: Solve for x
    x = 297,303,138,538.56/573,764.40
  6. Step 6: Final answer
    x = 518,162.40

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Similar ratio
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1.5x scale

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.