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Finding the Fourth Proportional to 328,869.72, 453,830.85 and 185,643.09

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Solution

The fourth proportional to 328,869.72, 453,830.85 and 185,643.09 is: 256,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,869.72 : 453,830.85 = 185,643.09 : x
  2. Step 2: Convert to fraction form
    328,869.72/453,830.85 = 185,643.09/x
  3. Step 3: Cross multiply
    328,869.72x = 453,830.85 × 185,643.09
  4. Step 4: Simplify right side
    328,869.72x = 84,250,561,331.33
  5. Step 5: Solve for x
    x = 84,250,561,331.33/328,869.72
  6. Step 6: Final answer
    x = 256,182.18

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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.