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Finding the Fourth Proportional to 653,286.34, 901,451.54 and 381,291.86

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Solution

The fourth proportional to 653,286.34, 901,451.54 and 381,291.86 is: 526,133.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,286.34 : 901,451.54 = 381,291.86 : x
  2. Step 2: Convert to fraction form
    653,286.34/901,451.54 = 381,291.86/x
  3. Step 3: Cross multiply
    653,286.34x = 901,451.54 × 381,291.86
  4. Step 4: Simplify right side
    653,286.34x = 343,716,134,386.46
  5. Step 5: Solve for x
    x = 343,716,134,386.46/653,286.34
  6. Step 6: Final answer
    x = 526,133.97

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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.