Home / 289,327.68-434,057.76-111,836.16

Finding the Fourth Proportional to 289,327.68, 434,057.76 and 111,836.16

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Solution

The fourth proportional to 289,327.68, 434,057.76 and 111,836.16 is: 167,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,327.68 : 434,057.76 = 111,836.16 : x
  2. Step 2: Convert to fraction form
    289,327.68/434,057.76 = 111,836.16/x
  3. Step 3: Cross multiply
    289,327.68x = 434,057.76 × 111,836.16
  4. Step 4: Simplify right side
    289,327.68x = 48,543,353,096.60
  5. Step 5: Solve for x
    x = 48,543,353,096.60/289,327.68
  6. Step 6: Final answer
    x = 167,779.84

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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.