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Finding the Fourth Proportional to 307,631.40, 461,447.10 and 97,333.80

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Solution

The fourth proportional to 307,631.40, 461,447.10 and 97,333.80 is: 146,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,631.40 : 461,447.10 = 97,333.80 : x
  2. Step 2: Convert to fraction form
    307,631.40/461,447.10 = 97,333.80/x
  3. Step 3: Cross multiply
    307,631.40x = 461,447.10 × 97,333.80
  4. Step 4: Simplify right side
    307,631.40x = 44,914,399,741.98
  5. Step 5: Solve for x
    x = 44,914,399,741.98/307,631.40
  6. Step 6: Final answer
    x = 146,000.70

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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.