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Finding the Fourth Proportional to 3,812,897.72, 5,719,392.84 and 1,117,277.59

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Solution

The fourth proportional to 3,812,897.72, 5,719,392.84 and 1,117,277.59 is: 1,675,929.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,812,897.72 : 5,719,392.84 = 1,117,277.59 : x
  2. Step 2: Convert to fraction form
    3,812,897.72/5,719,392.84 = 1,117,277.59/x
  3. Step 3: Cross multiply
    3,812,897.72x = 5,719,392.84 × 1,117,277.59
  4. Step 4: Simplify right side
    3,812,897.72x = 6,390,149,448,538.46
  5. Step 5: Solve for x
    x = 6,390,149,448,538.46/3,812,897.72
  6. Step 6: Final answer
    x = 1,675,929.94

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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.