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Finding the Fourth Proportional to 673,161.08, 928,947.34 and 371,355

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Solution

The fourth proportional to 673,161.08, 928,947.34 and 371,355 is: 512,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,161.08 : 928,947.34 = 371,355 : x
  2. Step 2: Convert to fraction form
    673,161.08/928,947.34 = 371,355/x
  3. Step 3: Cross multiply
    673,161.08x = 928,947.34 × 371,355
  4. Step 4: Simplify right side
    673,161.08x = 344,969,239,445.70
  5. Step 5: Solve for x
    x = 344,969,239,445.70/673,161.08
  6. Step 6: Final answer
    x = 512,461.65

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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.