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Finding the Fourth Proportional to 2,157,953, 3,237,085.02 and 828,257

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Solution

The fourth proportional to 2,157,953, 3,237,085.02 and 828,257 is: 1,242,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,953 : 3,237,085.02 = 828,257 : x
  2. Step 2: Convert to fraction form
    2,157,953/3,237,085.02 = 828,257/x
  3. Step 3: Cross multiply
    2,157,953x = 3,237,085.02 × 828,257
  4. Step 4: Simplify right side
    2,157,953x = 2,681,138,327,410.14
  5. Step 5: Solve for x
    x = 2,681,138,327,410.14/2,157,953
  6. Step 6: Final answer
    x = 1,242,445.19

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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.