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Finding the Fourth Proportional to 893,411,972.40, 1,337,472,563.40 and 664,396,330.80

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Solution

The fourth proportional to 893,411,972.40, 1,337,472,563.40 and 664,396,330.80 is: 994,627,216.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,411,972.40 : 1,337,472,563.40 = 664,396,330.80 : x
  2. Step 2: Convert to fraction form
    893,411,972.40/1,337,472,563.40 = 664,396,330.80/x
  3. Step 3: Cross multiply
    893,411,972.40x = 1,337,472,563.40 × 664,396,330.80
  4. Step 4: Simplify right side
    893,411,972.40x = 888,611,863,668,630,400
  5. Step 5: Solve for x
    x = 888,611,863,668,630,400/893,411,972.40
  6. Step 6: Final answer
    x = 994,627,216.92

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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.