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Finding the Fourth Proportional to 307,713.40, 461,699.70 and 167,572.60

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Solution

The fourth proportional to 307,713.40, 461,699.70 and 167,572.60 is: 251,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,713.40 : 461,699.70 = 167,572.60 : x
  2. Step 2: Convert to fraction form
    307,713.40/461,699.70 = 167,572.60/x
  3. Step 3: Cross multiply
    307,713.40x = 461,699.70 × 167,572.60
  4. Step 4: Simplify right side
    307,713.40x = 77,368,219,148.22
  5. Step 5: Solve for x
    x = 77,368,219,148.22/307,713.40
  6. Step 6: Final answer
    x = 251,429.48

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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.