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Finding the Fourth Proportional to 627,764.34, 866,338.02 and 348,369.42

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Solution

The fourth proportional to 627,764.34, 866,338.02 and 348,369.42 is: 480,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,764.34 : 866,338.02 = 348,369.42 : x
  2. Step 2: Convert to fraction form
    627,764.34/866,338.02 = 348,369.42/x
  3. Step 3: Cross multiply
    627,764.34x = 866,338.02 × 348,369.42
  4. Step 4: Simplify right side
    627,764.34x = 301,805,673,551.35
  5. Step 5: Solve for x
    x = 301,805,673,551.35/627,764.34
  6. Step 6: Final answer
    x = 480,762.69

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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.