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Finding the Fourth Proportional to 1,373,681.31, 1,895,796.54 and 762,031.06

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Solution

The fourth proportional to 1,373,681.31, 1,895,796.54 and 762,031.06 is: 1,051,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373,681.31 : 1,895,796.54 = 762,031.06 : x
  2. Step 2: Convert to fraction form
    1,373,681.31/1,895,796.54 = 762,031.06/x
  3. Step 3: Cross multiply
    1,373,681.31x = 1,895,796.54 × 762,031.06
  4. Step 4: Simplify right side
    1,373,681.31x = 1,444,655,842,181.04
  5. Step 5: Solve for x
    x = 1,444,655,842,181.04/1,373,681.31
  6. Step 6: Final answer
    x = 1,051,667.39

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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.