Home / 1,405,685.94-1,939,847.52-761,106.57

Finding the Fourth Proportional to 1,405,685.94, 1,939,847.52 and 761,106.57

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Solution

The fourth proportional to 1,405,685.94, 1,939,847.52 and 761,106.57 is: 1,050,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,685.94 : 1,939,847.52 = 761,106.57 : x
  2. Step 2: Convert to fraction form
    1,405,685.94/1,939,847.52 = 761,106.57/x
  3. Step 3: Cross multiply
    1,405,685.94x = 1,939,847.52 × 761,106.57
  4. Step 4: Simplify right side
    1,405,685.94x = 1,476,430,692,270.21
  5. Step 5: Solve for x
    x = 1,476,430,692,270.21/1,405,685.94
  6. Step 6: Final answer
    x = 1,050,327.57

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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.