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Finding the Fourth Proportional to 355,237.01, 490,221.28 and 194,088.59

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Solution

The fourth proportional to 355,237.01, 490,221.28 and 194,088.59 is: 267,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,237.01 : 490,221.28 = 194,088.59 : x
  2. Step 2: Convert to fraction form
    355,237.01/490,221.28 = 194,088.59/x
  3. Step 3: Cross multiply
    355,237.01x = 490,221.28 × 194,088.59
  4. Step 4: Simplify right side
    355,237.01x = 95,146,357,023.20
  5. Step 5: Solve for x
    x = 95,146,357,023.20/355,237.01
  6. Step 6: Final answer
    x = 267,839.09

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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.