Home / 545,381.21-818,445.49-190,395.23

Finding the Fourth Proportional to 545,381.21, 818,445.49 and 190,395.23

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Solution

The fourth proportional to 545,381.21, 818,445.49 and 190,395.23 is: 285,723.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,381.21 : 818,445.49 = 190,395.23 : x
  2. Step 2: Convert to fraction form
    545,381.21/818,445.49 = 190,395.23/x
  3. Step 3: Cross multiply
    545,381.21x = 818,445.49 × 190,395.23
  4. Step 4: Simplify right side
    545,381.21x = 155,828,112,742.80
  5. Step 5: Solve for x
    x = 155,828,112,742.80/545,381.21
  6. Step 6: Final answer
    x = 285,723.29

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1.5x scale

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.