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Finding the Fourth Proportional to 328,481.25, 453,290.34 and 185,254.62

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Solution

The fourth proportional to 328,481.25, 453,290.34 and 185,254.62 is: 255,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,481.25 : 453,290.34 = 185,254.62 : x
  2. Step 2: Convert to fraction form
    328,481.25/453,290.34 = 185,254.62/x
  3. Step 3: Cross multiply
    328,481.25x = 453,290.34 × 185,254.62
  4. Step 4: Simplify right side
    328,481.25x = 83,974,129,686.37
  5. Step 5: Solve for x
    x = 83,974,129,686.37/328,481.25
  6. Step 6: Final answer
    x = 255,643.60

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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.