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Finding the Fourth Proportional to 1,406,679.82, 1,941,227.46 and 762,100.02

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Solution

The fourth proportional to 1,406,679.82, 1,941,227.46 and 762,100.02 is: 1,051,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,406,679.82 : 1,941,227.46 = 762,100.02 : x
  2. Step 2: Convert to fraction form
    1,406,679.82/1,941,227.46 = 762,100.02/x
  3. Step 3: Cross multiply
    1,406,679.82x = 1,941,227.46 × 762,100.02
  4. Step 4: Simplify right side
    1,406,679.82x = 1,479,409,486,090.55
  5. Step 5: Solve for x
    x = 1,479,409,486,090.55/1,406,679.82
  6. Step 6: Final answer
    x = 1,051,703.07

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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.