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Finding the Fourth Proportional to 526,624.64, 789,528.96 and 260,201.60

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Solution

The fourth proportional to 526,624.64, 789,528.96 and 260,201.60 is: 390,100.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,624.64 : 789,528.96 = 260,201.60 : x
  2. Step 2: Convert to fraction form
    526,624.64/789,528.96 = 260,201.60/x
  3. Step 3: Cross multiply
    526,624.64x = 789,528.96 × 260,201.60
  4. Step 4: Simplify right side
    526,624.64x = 205,436,698,638.34
  5. Step 5: Solve for x
    x = 205,436,698,638.34/526,624.64
  6. Step 6: Final answer
    x = 390,100.81

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Similar ratio
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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.