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Finding the Fourth Proportional to 3,390,806.07, 4,679,419.82 and 1,862,945.19

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Solution

The fourth proportional to 3,390,806.07, 4,679,419.82 and 1,862,945.19 is: 2,570,923.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390,806.07 : 4,679,419.82 = 1,862,945.19 : x
  2. Step 2: Convert to fraction form
    3,390,806.07/4,679,419.82 = 1,862,945.19/x
  3. Step 3: Cross multiply
    3,390,806.07x = 4,679,419.82 × 1,862,945.19
  4. Step 4: Simplify right side
    3,390,806.07x = 8,717,502,636,344.94
  5. Step 5: Solve for x
    x = 8,717,502,636,344.94/3,390,806.07
  6. Step 6: Final answer
    x = 2,570,923.39

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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.