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Finding the Fourth Proportional to 672,632.64, 1,008,751.68 and 251,809.92

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Solution

The fourth proportional to 672,632.64, 1,008,751.68 and 251,809.92 is: 377,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,632.64 : 1,008,751.68 = 251,809.92 : x
  2. Step 2: Convert to fraction form
    672,632.64/1,008,751.68 = 251,809.92/x
  3. Step 3: Cross multiply
    672,632.64x = 1,008,751.68 × 251,809.92
  4. Step 4: Simplify right side
    672,632.64x = 254,013,679,840.67
  5. Step 5: Solve for x
    x = 254,013,679,840.67/672,632.64
  6. Step 6: Final answer
    x = 377,641.03

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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.