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Finding the Fourth Proportional to 1,212,463.22, 1,819,003.74 and 359,565.98

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Solution

The fourth proportional to 1,212,463.22, 1,819,003.74 and 359,565.98 is: 539,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,463.22 : 1,819,003.74 = 359,565.98 : x
  2. Step 2: Convert to fraction form
    1,212,463.22/1,819,003.74 = 359,565.98/x
  3. Step 3: Cross multiply
    1,212,463.22x = 1,819,003.74 × 359,565.98
  4. Step 4: Simplify right side
    1,212,463.22x = 654,051,862,396.77
  5. Step 5: Solve for x
    x = 654,051,862,396.77/1,212,463.22
  6. Step 6: Final answer
    x = 539,440.58

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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.