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Finding the Fourth Proportional to 1,877,422.42, 2,590,893.87 and 1,061,748.08

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Solution

The fourth proportional to 1,877,422.42, 2,590,893.87 and 1,061,748.08 is: 1,465,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,422.42 : 2,590,893.87 = 1,061,748.08 : x
  2. Step 2: Convert to fraction form
    1,877,422.42/2,590,893.87 = 1,061,748.08/x
  3. Step 3: Cross multiply
    1,877,422.42x = 2,590,893.87 × 1,061,748.08
  4. Step 4: Simplify right side
    1,877,422.42x = 2,750,876,598,433.50
  5. Step 5: Solve for x
    x = 2,750,876,598,433.50/1,877,422.42
  6. Step 6: Final answer
    x = 1,465,241.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.