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Finding the Fourth Proportional to 264,692,360.40, 397,038,540.60 and 80,459,480.40

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Solution

The fourth proportional to 264,692,360.40, 397,038,540.60 and 80,459,480.40 is: 120,689,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,692,360.40 : 397,038,540.60 = 80,459,480.40 : x
  2. Step 2: Convert to fraction form
    264,692,360.40/397,038,540.60 = 80,459,480.40/x
  3. Step 3: Cross multiply
    264,692,360.40x = 397,038,540.60 × 80,459,480.40
  4. Step 4: Simplify right side
    264,692,360.40x = 31,945,514,675,450,308
  5. Step 5: Solve for x
    x = 31,945,514,675,450,308/264,692,360.40
  6. Step 6: Final answer
    x = 120,689,220.60

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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.