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Finding the Fourth Proportional to 355,189.53, 490,195.32 and 194,068.77

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Solution

The fourth proportional to 355,189.53, 490,195.32 and 194,068.77 is: 267,833.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,189.53 : 490,195.32 = 194,068.77 : x
  2. Step 2: Convert to fraction form
    355,189.53/490,195.32 = 194,068.77/x
  3. Step 3: Cross multiply
    355,189.53x = 490,195.32 × 194,068.77
  4. Step 4: Simplify right side
    355,189.53x = 95,131,602,812.16
  5. Step 5: Solve for x
    x = 95,131,602,812.16/355,189.53
  6. Step 6: Final answer
    x = 267,833.35

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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.