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Finding the Fourth Proportional to 1,365,764.03, 1,884,743.34 and 753,915.90

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Solution

The fourth proportional to 1,365,764.03, 1,884,743.34 and 753,915.90 is: 1,040,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,764.03 : 1,884,743.34 = 753,915.90 : x
  2. Step 2: Convert to fraction form
    1,365,764.03/1,884,743.34 = 753,915.90/x
  3. Step 3: Cross multiply
    1,365,764.03x = 1,884,743.34 × 753,915.90
  4. Step 4: Simplify right side
    1,365,764.03x = 1,420,937,971,445.11
  5. Step 5: Solve for x
    x = 1,420,937,971,445.11/1,365,764.03
  6. Step 6: Final answer
    x = 1,040,397.86

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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.