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Finding the Fourth Proportional to 329,678.63, 455,045.22 and 193,803.63

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Solution

The fourth proportional to 329,678.63, 455,045.22 and 193,803.63 is: 267,501.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,678.63 : 455,045.22 = 193,803.63 : x
  2. Step 2: Convert to fraction form
    329,678.63/455,045.22 = 193,803.63/x
  3. Step 3: Cross multiply
    329,678.63x = 455,045.22 × 193,803.63
  4. Step 4: Simplify right side
    329,678.63x = 88,189,415,450.15
  5. Step 5: Solve for x
    x = 88,189,415,450.15/329,678.63
  6. Step 6: Final answer
    x = 267,501.16

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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.