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Finding the Fourth Proportional to 328,630.38, 453,530.93 and 185,338.14

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Solution

The fourth proportional to 328,630.38, 453,530.93 and 185,338.14 is: 255,778.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,630.38 : 453,530.93 = 185,338.14 : x
  2. Step 2: Convert to fraction form
    328,630.38/453,530.93 = 185,338.14/x
  3. Step 3: Cross multiply
    328,630.38x = 453,530.93 × 185,338.14
  4. Step 4: Simplify right side
    328,630.38x = 84,056,578,071.98
  5. Step 5: Solve for x
    x = 84,056,578,071.98/328,630.38
  6. Step 6: Final answer
    x = 255,778.48

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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.