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Finding the Fourth Proportional to 328,561.64, 453,397.86 and 185,321.96

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Solution

The fourth proportional to 328,561.64, 453,397.86 and 185,321.96 is: 255,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,561.64 : 453,397.86 = 185,321.96 : x
  2. Step 2: Convert to fraction form
    328,561.64/453,397.86 = 185,321.96/x
  3. Step 3: Cross multiply
    328,561.64x = 453,397.86 × 185,321.96
  4. Step 4: Simplify right side
    328,561.64x = 84,024,580,075.01
  5. Step 5: Solve for x
    x = 84,024,580,075.01/328,561.64
  6. Step 6: Final answer
    x = 255,734.60

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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.