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Finding the Fourth Proportional to 673,955.64, 930,063.06 and 372,149.64

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Solution

The fourth proportional to 673,955.64, 930,063.06 and 372,149.64 is: 513,568.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,955.64 : 930,063.06 = 372,149.64 : x
  2. Step 2: Convert to fraction form
    673,955.64/930,063.06 = 372,149.64/x
  3. Step 3: Cross multiply
    673,955.64x = 930,063.06 × 372,149.64
  4. Step 4: Simplify right side
    673,955.64x = 346,122,632,956.30
  5. Step 5: Solve for x
    x = 346,122,632,956.30/673,955.64
  6. Step 6: Final answer
    x = 513,568.86

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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.