Home / 330,022.07-455,352.40-186,782.11

Finding the Fourth Proportional to 330,022.07, 455,352.40 and 186,782.11

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Solution

The fourth proportional to 330,022.07, 455,352.40 and 186,782.11 is: 257,715.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.07 : 455,352.40 = 186,782.11 : x
  2. Step 2: Convert to fraction form
    330,022.07/455,352.40 = 186,782.11/x
  3. Step 3: Cross multiply
    330,022.07x = 455,352.40 × 186,782.11
  4. Step 4: Simplify right side
    330,022.07x = 85,051,682,065.56
  5. Step 5: Solve for x
    x = 85,051,682,065.56/330,022.07
  6. Step 6: Final answer
    x = 257,715.13

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1.5x scale

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.