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Finding the Fourth Proportional to 673,146.66, 928,877.85 and 371,321.22

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Solution

The fourth proportional to 673,146.66, 928,877.85 and 371,321.22 is: 512,387.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,146.66 : 928,877.85 = 371,321.22 : x
  2. Step 2: Convert to fraction form
    673,146.66/928,877.85 = 371,321.22/x
  3. Step 3: Cross multiply
    673,146.66x = 928,877.85 × 371,321.22
  4. Step 4: Simplify right side
    673,146.66x = 344,912,056,492.98
  5. Step 5: Solve for x
    x = 344,912,056,492.98/673,146.66
  6. Step 6: Final answer
    x = 512,387.68

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1.5x scale

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.