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Finding the Fourth Proportional to 351,431.60, 527,017.80 and 173,879.60

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Solution

The fourth proportional to 351,431.60, 527,017.80 and 173,879.60 is: 260,755.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,431.60 : 527,017.80 = 173,879.60 : x
  2. Step 2: Convert to fraction form
    351,431.60/527,017.80 = 173,879.60/x
  3. Step 3: Cross multiply
    351,431.60x = 527,017.80 × 173,879.60
  4. Step 4: Simplify right side
    351,431.60x = 91,637,644,256.88
  5. Step 5: Solve for x
    x = 91,637,644,256.88/351,431.60
  6. Step 6: Final answer
    x = 260,755.28

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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.