Home / 1,276,835.42-1,915,690.54-435,977.66

Finding the Fourth Proportional to 1,276,835.42, 1,915,690.54 and 435,977.66

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Solution

The fourth proportional to 1,276,835.42, 1,915,690.54 and 435,977.66 is: 654,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,835.42 : 1,915,690.54 = 435,977.66 : x
  2. Step 2: Convert to fraction form
    1,276,835.42/1,915,690.54 = 435,977.66/x
  3. Step 3: Cross multiply
    1,276,835.42x = 1,915,690.54 × 435,977.66
  4. Step 4: Simplify right side
    1,276,835.42x = 835,198,278,913.34
  5. Step 5: Solve for x
    x = 835,198,278,913.34/1,276,835.42
  6. Step 6: Final answer
    x = 654,115.84

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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.