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Finding the Fourth Proportional to 355,233.77, 490,216.79 and 194,085.35

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Solution

The fourth proportional to 355,233.77, 490,216.79 and 194,085.35 is: 267,834.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,233.77 : 490,216.79 = 194,085.35 : x
  2. Step 2: Convert to fraction form
    355,233.77/490,216.79 = 194,085.35/x
  3. Step 3: Cross multiply
    355,233.77x = 490,216.79 × 194,085.35
  4. Step 4: Simplify right side
    355,233.77x = 95,143,893,841.52
  5. Step 5: Solve for x
    x = 95,143,893,841.52/355,233.77
  6. Step 6: Final answer
    x = 267,834.60

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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.