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Finding the Fourth Proportional to 4,877,886.78, 6,731,218.58 and 2,702,300.22

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Solution

The fourth proportional to 4,877,886.78, 6,731,218.58 and 2,702,300.22 is: 3,729,027.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877,886.78 : 6,731,218.58 = 2,702,300.22 : x
  2. Step 2: Convert to fraction form
    4,877,886.78/6,731,218.58 = 2,702,300.22/x
  3. Step 3: Cross multiply
    4,877,886.78x = 6,731,218.58 × 2,702,300.22
  4. Step 4: Simplify right side
    4,877,886.78x = 18,189,773,436,090.59
  5. Step 5: Solve for x
    x = 18,189,773,436,090.59/4,877,886.78
  6. Step 6: Final answer
    x = 3,729,027.40

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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.