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Finding the Fourth Proportional to 432,006.60, 647,232.30 and 352,691.40

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Solution

The fourth proportional to 432,006.60, 647,232.30 and 352,691.40 is: 528,402.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,006.60 : 647,232.30 = 352,691.40 : x
  2. Step 2: Convert to fraction form
    432,006.60/647,232.30 = 352,691.40/x
  3. Step 3: Cross multiply
    432,006.60x = 647,232.30 × 352,691.40
  4. Step 4: Simplify right side
    432,006.60x = 228,273,266,012.22
  5. Step 5: Solve for x
    x = 228,273,266,012.22/432,006.60
  6. Step 6: Final answer
    x = 528,402.27

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1.5x scale

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.