Home / 291,138.36-401,789.25-176,427.05

Finding the Fourth Proportional to 291,138.36, 401,789.25 and 176,427.05

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Solution

The fourth proportional to 291,138.36, 401,789.25 and 176,427.05 is: 243,480.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,138.36 : 401,789.25 = 176,427.05 : x
  2. Step 2: Convert to fraction form
    291,138.36/401,789.25 = 176,427.05/x
  3. Step 3: Cross multiply
    291,138.36x = 401,789.25 × 176,427.05
  4. Step 4: Simplify right side
    291,138.36x = 70,886,490,090.27
  5. Step 5: Solve for x
    x = 70,886,490,090.27/291,138.36
  6. Step 6: Final answer
    x = 243,480.42

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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.