Home / 383,187.20-528,797.76-213,436.16

Finding the Fourth Proportional to 383,187.20, 528,797.76 and 213,436.16

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Solution

The fourth proportional to 383,187.20, 528,797.76 and 213,436.16 is: 294,541.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,187.20 : 528,797.76 = 213,436.16 : x
  2. Step 2: Convert to fraction form
    383,187.20/528,797.76 = 213,436.16/x
  3. Step 3: Cross multiply
    383,187.20x = 528,797.76 × 213,436.16
  4. Step 4: Simplify right side
    383,187.20x = 112,864,563,311.00
  5. Step 5: Solve for x
    x = 112,864,563,311.00/383,187.20
  6. Step 6: Final answer
    x = 294,541.58

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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.