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Finding the Fourth Proportional to 355,538.94, 533,059.40 and 130,870.22

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Solution

The fourth proportional to 355,538.94, 533,059.40 and 130,870.22 is: 196,213.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,538.94 : 533,059.40 = 130,870.22 : x
  2. Step 2: Convert to fraction form
    355,538.94/533,059.40 = 130,870.22/x
  3. Step 3: Cross multiply
    355,538.94x = 533,059.40 × 130,870.22
  4. Step 4: Simplify right side
    355,538.94x = 69,761,600,951.07
  5. Step 5: Solve for x
    x = 69,761,600,951.07/355,538.94
  6. Step 6: Final answer
    x = 196,213.67

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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.