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Finding the Fourth Proportional to 607,375.60, 911,063.40 and 574,716.40

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Solution

The fourth proportional to 607,375.60, 911,063.40 and 574,716.40 is: 862,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,375.60 : 911,063.40 = 574,716.40 : x
  2. Step 2: Convert to fraction form
    607,375.60/911,063.40 = 574,716.40/x
  3. Step 3: Cross multiply
    607,375.60x = 911,063.40 × 574,716.40
  4. Step 4: Simplify right side
    607,375.60x = 523,603,077,419.76
  5. Step 5: Solve for x
    x = 523,603,077,419.76/607,375.60
  6. Step 6: Final answer
    x = 862,074.60

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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.