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Finding the Fourth Proportional to 220,542,938.40, 330,814,407.60 and 220,542,938.40

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Solution

The fourth proportional to 220,542,938.40, 330,814,407.60 and 220,542,938.40 is: 330,814,407.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,542,938.40 : 330,814,407.60 = 220,542,938.40 : x
  2. Step 2: Convert to fraction form
    220,542,938.40/330,814,407.60 = 220,542,938.40/x
  3. Step 3: Cross multiply
    220,542,938.40x = 330,814,407.60 × 220,542,938.40
  4. Step 4: Simplify right side
    220,542,938.40x = 72,958,781,517,159,296
  5. Step 5: Solve for x
    x = 72,958,781,517,159,296/220,542,938.40
  6. Step 6: Final answer
    x = 330,814,407.60

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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.