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Finding the Fourth Proportional to 2,662,632,700.56, 3,994,493,778 and 915,608,549.16

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Solution

The fourth proportional to 2,662,632,700.56, 3,994,493,778 and 915,608,549.16 is: 1,373,600,140.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,632,700.56 : 3,994,493,778 = 915,608,549.16 : x
  2. Step 2: Convert to fraction form
    2,662,632,700.56/3,994,493,778 = 915,608,549.16/x
  3. Step 3: Cross multiply
    2,662,632,700.56x = 3,994,493,778 × 915,608,549.16
  4. Step 4: Simplify right side
    2,662,632,700.56x = 3,657,392,652,703,226,880
  5. Step 5: Solve for x
    x = 3,657,392,652,703,226,880/2,662,632,700.56
  6. Step 6: Final answer
    x = 1,373,600,140.92

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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.