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Finding the Fourth Proportional to 40,398,768.20, 56,701,764.56 and 40,398,768.20

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Solution

The fourth proportional to 40,398,768.20, 56,701,764.56 and 40,398,768.20 is: 56,701,764.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,398,768.20 : 56,701,764.56 = 40,398,768.20 : x
  2. Step 2: Convert to fraction form
    40,398,768.20/56,701,764.56 = 40,398,768.20/x
  3. Step 3: Cross multiply
    40,398,768.20x = 56,701,764.56 × 40,398,768.20
  4. Step 4: Simplify right side
    40,398,768.20x = 2,290,681,442,990,415.50
  5. Step 5: Solve for x
    x = 2,290,681,442,990,415.50/40,398,768.20
  6. Step 6: Final answer
    x = 56,701,764.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.