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Finding the Fourth Proportional to 1,594,420, 2,200,299.60 and 879,028

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Solution

The fourth proportional to 1,594,420, 2,200,299.60 and 879,028 is: 1,213,058.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,594,420 : 2,200,299.60 = 879,028 : x
  2. Step 2: Convert to fraction form
    1,594,420/2,200,299.60 = 879,028/x
  3. Step 3: Cross multiply
    1,594,420x = 2,200,299.60 × 879,028
  4. Step 4: Simplify right side
    1,594,420x = 1,934,124,956,788.80
  5. Step 5: Solve for x
    x = 1,934,124,956,788.80/1,594,420
  6. Step 6: Final answer
    x = 1,213,058.64

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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.