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Finding the Fourth Proportional to 375,516.46, 564,455.67 and 326,210.55

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Solution

The fourth proportional to 375,516.46, 564,455.67 and 326,210.55 is: 490,341.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,516.46 : 564,455.67 = 326,210.55 : x
  2. Step 2: Convert to fraction form
    375,516.46/564,455.67 = 326,210.55/x
  3. Step 3: Cross multiply
    375,516.46x = 564,455.67 × 326,210.55
  4. Step 4: Simplify right side
    375,516.46x = 184,131,391,739.04
  5. Step 5: Solve for x
    x = 184,131,391,739.04/375,516.46
  6. Step 6: Final answer
    x = 490,341.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.