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Finding the Fourth Proportional to 526,456.80, 789,636.24 and 147,411.84

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Solution

The fourth proportional to 526,456.80, 789,636.24 and 147,411.84 is: 221,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,456.80 : 789,636.24 = 147,411.84 : x
  2. Step 2: Convert to fraction form
    526,456.80/789,636.24 = 147,411.84/x
  3. Step 3: Cross multiply
    526,456.80x = 789,636.24 × 147,411.84
  4. Step 4: Simplify right side
    526,456.80x = 116,401,731,069.08
  5. Step 5: Solve for x
    x = 116,401,731,069.08/526,456.80
  6. Step 6: Final answer
    x = 221,104.05

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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.