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Finding the Fourth Proportional to 526,404.60, 789,607.04 and 147,381.17

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Solution

The fourth proportional to 526,404.60, 789,607.04 and 147,381.17 is: 221,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,404.60 : 789,607.04 = 147,381.17 : x
  2. Step 2: Convert to fraction form
    526,404.60/789,607.04 = 147,381.17/x
  3. Step 3: Cross multiply
    526,404.60x = 789,607.04 × 147,381.17
  4. Step 4: Simplify right side
    526,404.60x = 116,373,210,632.55
  5. Step 5: Solve for x
    x = 116,373,210,632.55/526,404.60
  6. Step 6: Final answer
    x = 221,071.80

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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.