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Finding the Fourth Proportional to 397,256.40, 595,009.80 and 352,933.20

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Solution

The fourth proportional to 397,256.40, 595,009.80 and 352,933.20 is: 528,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,256.40 : 595,009.80 = 352,933.20 : x
  2. Step 2: Convert to fraction form
    397,256.40/595,009.80 = 352,933.20/x
  3. Step 3: Cross multiply
    397,256.40x = 595,009.80 × 352,933.20
  4. Step 4: Simplify right side
    397,256.40x = 209,998,712,745.36
  5. Step 5: Solve for x
    x = 209,998,712,745.36/397,256.40
  6. Step 6: Final answer
    x = 528,622.60

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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.