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Finding the Fourth Proportional to 2,157,888.62, 3,236,832.02 and 641,565

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Solution

The fourth proportional to 2,157,888.62, 3,236,832.02 and 641,565 is: 962,347.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,888.62 : 3,236,832.02 = 641,565 : x
  2. Step 2: Convert to fraction form
    2,157,888.62/3,236,832.02 = 641,565/x
  3. Step 3: Cross multiply
    2,157,888.62x = 3,236,832.02 × 641,565
  4. Step 4: Simplify right side
    2,157,888.62x = 2,076,638,134,911.30
  5. Step 5: Solve for x
    x = 2,076,638,134,911.30/2,157,888.62
  6. Step 6: Final answer
    x = 962,347.23

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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.