Home / 289,538.40-434,329.20-102,525.60

Finding the Fourth Proportional to 289,538.40, 434,329.20 and 102,525.60

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Solution

The fourth proportional to 289,538.40, 434,329.20 and 102,525.60 is: 153,796.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,538.40 : 434,329.20 = 102,525.60 : x
  2. Step 2: Convert to fraction form
    289,538.40/434,329.20 = 102,525.60/x
  3. Step 3: Cross multiply
    289,538.40x = 434,329.20 × 102,525.60
  4. Step 4: Simplify right side
    289,538.40x = 44,529,861,827.52
  5. Step 5: Solve for x
    x = 44,529,861,827.52/289,538.40
  6. Step 6: Final answer
    x = 153,796.05

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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.