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Finding the Fourth Proportional to 526,235.90, 789,403.68 and 147,156.62

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Solution

The fourth proportional to 526,235.90, 789,403.68 and 147,156.62 is: 220,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,235.90 : 789,403.68 = 147,156.62 : x
  2. Step 2: Convert to fraction form
    526,235.90/789,403.68 = 147,156.62/x
  3. Step 3: Cross multiply
    526,235.90x = 789,403.68 × 147,156.62
  4. Step 4: Simplify right side
    526,235.90x = 116,165,977,364.36
  5. Step 5: Solve for x
    x = 116,165,977,364.36/526,235.90
  6. Step 6: Final answer
    x = 220,748.86

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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.