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Finding the Fourth Proportional to 355,349.19, 490,373.28 and 194,200.10

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Solution

The fourth proportional to 355,349.19, 490,373.28 and 194,200.10 is: 267,991.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,349.19 : 490,373.28 = 194,200.10 : x
  2. Step 2: Convert to fraction form
    355,349.19/490,373.28 = 194,200.10/x
  3. Step 3: Cross multiply
    355,349.19x = 490,373.28 × 194,200.10
  4. Step 4: Simplify right side
    355,349.19x = 95,230,537,561.46
  5. Step 5: Solve for x
    x = 95,230,537,561.46/355,349.19
  6. Step 6: Final answer
    x = 267,991.43

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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.