Home / 312,656.05-431,466.85-169,416.36

Finding the Fourth Proportional to 312,656.05, 431,466.85 and 169,416.36

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Solution

The fourth proportional to 312,656.05, 431,466.85 and 169,416.36 is: 233,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,656.05 : 431,466.85 = 169,416.36 : x
  2. Step 2: Convert to fraction form
    312,656.05/431,466.85 = 169,416.36/x
  3. Step 3: Cross multiply
    312,656.05x = 431,466.85 × 169,416.36
  4. Step 4: Simplify right side
    312,656.05x = 73,097,543,399.44
  5. Step 5: Solve for x
    x = 73,097,543,399.44/312,656.05
  6. Step 6: Final answer
    x = 233,795.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.