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Finding the Fourth Proportional to 1,583,435.78, 2,374,789.38 and 943,920.06

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Solution

The fourth proportional to 1,583,435.78, 2,374,789.38 and 943,920.06 is: 1,415,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583,435.78 : 2,374,789.38 = 943,920.06 : x
  2. Step 2: Convert to fraction form
    1,583,435.78/2,374,789.38 = 943,920.06/x
  3. Step 3: Cross multiply
    1,583,435.78x = 2,374,789.38 × 943,920.06
  4. Step 4: Simplify right side
    1,583,435.78x = 2,241,611,334,056.96
  5. Step 5: Solve for x
    x = 2,241,611,334,056.96/1,583,435.78
  6. Step 6: Final answer
    x = 1,415,662.93

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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.