Home / 383,263.12-528,868.80-213,493.60

Finding the Fourth Proportional to 383,263.12, 528,868.80 and 213,493.60

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Solution

The fourth proportional to 383,263.12, 528,868.80 and 213,493.60 is: 294,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,263.12 : 528,868.80 = 213,493.60 : x
  2. Step 2: Convert to fraction form
    383,263.12/528,868.80 = 213,493.60/x
  3. Step 3: Cross multiply
    383,263.12x = 528,868.80 × 213,493.60
  4. Step 4: Simplify right side
    383,263.12x = 112,910,104,039.68
  5. Step 5: Solve for x
    x = 112,910,104,039.68/383,263.12
  6. Step 6: Final answer
    x = 294,602.06

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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.