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Finding the Fourth Proportional to 756,810,012.70, 1,135,215,019.05 and 756,810,012.70

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Solution

The fourth proportional to 756,810,012.70, 1,135,215,019.05 and 756,810,012.70 is: 1,135,215,019.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,810,012.70 : 1,135,215,019.05 = 756,810,012.70 : x
  2. Step 2: Convert to fraction form
    756,810,012.70/1,135,215,019.05 = 756,810,012.70/x
  3. Step 3: Cross multiply
    756,810,012.70x = 1,135,215,019.05 × 756,810,012.70
  4. Step 4: Simplify right side
    756,810,012.70x = 859,142,092,984,461,312
  5. Step 5: Solve for x
    x = 859,142,092,984,461,312/756,810,012.70
  6. Step 6: Final answer
    x = 1,135,215,019.05

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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.