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Finding the Fourth Proportional to 301,659.51, 416,362.63 and 172,672.76

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Solution

The fourth proportional to 301,659.51, 416,362.63 and 172,672.76 is: 238,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,659.51 : 416,362.63 = 172,672.76 : x
  2. Step 2: Convert to fraction form
    301,659.51/416,362.63 = 172,672.76/x
  3. Step 3: Cross multiply
    301,659.51x = 416,362.63 × 172,672.76
  4. Step 4: Simplify right side
    301,659.51x = 71,894,483,442.05
  5. Step 5: Solve for x
    x = 71,894,483,442.05/301,659.51
  6. Step 6: Final answer
    x = 238,329.91

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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.