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Finding the Fourth Proportional to 40,460,408.80, 60,690,613.20 and 40,208,466.40

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Solution

The fourth proportional to 40,460,408.80, 60,690,613.20 and 40,208,466.40 is: 60,312,699.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,460,408.80 : 60,690,613.20 = 40,208,466.40 : x
  2. Step 2: Convert to fraction form
    40,460,408.80/60,690,613.20 = 40,208,466.40/x
  3. Step 3: Cross multiply
    40,460,408.80x = 60,690,613.20 × 40,208,466.40
  4. Step 4: Simplify right side
    40,460,408.80x = 2,440,276,481,647,596.50
  5. Step 5: Solve for x
    x = 2,440,276,481,647,596.50/40,460,408.80
  6. Step 6: Final answer
    x = 60,312,699.60

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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.