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Finding the Fourth Proportional to 370,576.50, 556,608.60 and 221,108.46

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Solution

The fourth proportional to 370,576.50, 556,608.60 and 221,108.46 is: 332,106.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,576.50 : 556,608.60 = 221,108.46 : x
  2. Step 2: Convert to fraction form
    370,576.50/556,608.60 = 221,108.46/x
  3. Step 3: Cross multiply
    370,576.50x = 556,608.60 × 221,108.46
  4. Step 4: Simplify right side
    370,576.50x = 123,070,870,368.76
  5. Step 5: Solve for x
    x = 123,070,870,368.76/370,576.50
  6. Step 6: Final answer
    x = 332,106.52

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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.