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Finding the Fourth Proportional to 272,289.60, 407,559.60 and 193,557.60

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Solution

The fourth proportional to 272,289.60, 407,559.60 and 193,557.60 is: 289,714.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,289.60 : 407,559.60 = 193,557.60 : x
  2. Step 2: Convert to fraction form
    272,289.60/407,559.60 = 193,557.60/x
  3. Step 3: Cross multiply
    272,289.60x = 407,559.60 × 193,557.60
  4. Step 4: Simplify right side
    272,289.60x = 78,886,258,032.96
  5. Step 5: Solve for x
    x = 78,886,258,032.96/272,289.60
  6. Step 6: Final answer
    x = 289,714.55

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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.