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Finding the Fourth Proportional to 627,968.58, 866,619.45 and 359,748.42

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Solution

The fourth proportional to 627,968.58, 866,619.45 and 359,748.42 is: 496,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,968.58 : 866,619.45 = 359,748.42 : x
  2. Step 2: Convert to fraction form
    627,968.58/866,619.45 = 359,748.42/x
  3. Step 3: Cross multiply
    627,968.58x = 866,619.45 × 359,748.42
  4. Step 4: Simplify right side
    627,968.58x = 311,764,977,878.77
  5. Step 5: Solve for x
    x = 311,764,977,878.77/627,968.58
  6. Step 6: Final answer
    x = 496,465.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.