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Finding the Fourth Proportional to 526,422.34, 789,633.60 and 147,398.86

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Solution

The fourth proportional to 526,422.34, 789,633.60 and 147,398.86 is: 221,098.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,422.34 : 789,633.60 = 147,398.86 : x
  2. Step 2: Convert to fraction form
    526,422.34/789,633.60 = 147,398.86/x
  3. Step 3: Cross multiply
    526,422.34x = 789,633.60 × 147,398.86
  4. Step 4: Simplify right side
    526,422.34x = 116,391,092,457.70
  5. Step 5: Solve for x
    x = 116,391,092,457.70/526,422.34
  6. Step 6: Final answer
    x = 221,098.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.