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Finding the Fourth Proportional to 328,539.47, 453,379.83 and 185,345.64

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Solution

The fourth proportional to 328,539.47, 453,379.83 and 185,345.64 is: 255,774.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,539.47 : 453,379.83 = 185,345.64 : x
  2. Step 2: Convert to fraction form
    328,539.47/453,379.83 = 185,345.64/x
  3. Step 3: Cross multiply
    328,539.47x = 453,379.83 × 185,345.64
  4. Step 4: Simplify right side
    328,539.47x = 84,031,974,754.44
  5. Step 5: Solve for x
    x = 84,031,974,754.44/328,539.47
  6. Step 6: Final answer
    x = 255,774.37

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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.