Home / 1,290,211.60-1,933,567.80-862,531.60

Finding the Fourth Proportional to 1,290,211.60, 1,933,567.80 and 862,531.60

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Solution

The fourth proportional to 1,290,211.60, 1,933,567.80 and 862,531.60 is: 1,292,627.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,211.60 : 1,933,567.80 = 862,531.60 : x
  2. Step 2: Convert to fraction form
    1,290,211.60/1,933,567.80 = 862,531.60/x
  3. Step 3: Cross multiply
    1,290,211.60x = 1,933,567.80 × 862,531.60
  4. Step 4: Simplify right side
    1,290,211.60x = 1,667,763,328,242.48
  5. Step 5: Solve for x
    x = 1,667,763,328,242.48/1,290,211.60
  6. Step 6: Final answer
    x = 1,292,627.76

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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.