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Finding the Fourth Proportional to 830,494,401.90, 1,245,741,602.85 and 830,494,401.90

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Solution

The fourth proportional to 830,494,401.90, 1,245,741,602.85 and 830,494,401.90 is: 1,245,741,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,494,401.90 : 1,245,741,602.85 = 830,494,401.90 : x
  2. Step 2: Convert to fraction form
    830,494,401.90/1,245,741,602.85 = 830,494,401.90/x
  3. Step 3: Cross multiply
    830,494,401.90x = 1,245,741,602.85 × 830,494,401.90
  4. Step 4: Simplify right side
    830,494,401.90x = 1,034,581,427,380,857,984
  5. Step 5: Solve for x
    x = 1,034,581,427,380,857,984/830,494,401.90
  6. Step 6: Final answer
    x = 1,245,741,602.85

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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.