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Finding the Fourth Proportional to 331,345.60, 497,164.20 and 153,761.20

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Solution

The fourth proportional to 331,345.60, 497,164.20 and 153,761.20 is: 230,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,345.60 : 497,164.20 = 153,761.20 : x
  2. Step 2: Convert to fraction form
    331,345.60/497,164.20 = 153,761.20/x
  3. Step 3: Cross multiply
    331,345.60x = 497,164.20 × 153,761.20
  4. Step 4: Simplify right side
    331,345.60x = 76,444,563,989.04
  5. Step 5: Solve for x
    x = 76,444,563,989.04/331,345.60
  6. Step 6: Final answer
    x = 230,709.46

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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.