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Finding the Fourth Proportional to 3,910,655.52, 5,865,988.14 and 1,070,792.28

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Solution

The fourth proportional to 3,910,655.52, 5,865,988.14 and 1,070,792.28 is: 1,606,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910,655.52 : 5,865,988.14 = 1,070,792.28 : x
  2. Step 2: Convert to fraction form
    3,910,655.52/5,865,988.14 = 1,070,792.28/x
  3. Step 3: Cross multiply
    3,910,655.52x = 5,865,988.14 × 1,070,792.28
  4. Step 4: Simplify right side
    3,910,655.52x = 6,281,254,814,883.56
  5. Step 5: Solve for x
    x = 6,281,254,814,883.56/3,910,655.52
  6. Step 6: Final answer
    x = 1,606,189.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.