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Finding the Fourth Proportional to 217,435.40, 325,715.70 and 146,576.60

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Solution

The fourth proportional to 217,435.40, 325,715.70 and 146,576.60 is: 219,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,435.40 : 325,715.70 = 146,576.60 : x
  2. Step 2: Convert to fraction form
    217,435.40/325,715.70 = 146,576.60/x
  3. Step 3: Cross multiply
    217,435.40x = 325,715.70 × 146,576.60
  4. Step 4: Simplify right side
    217,435.40x = 47,742,299,872.62
  5. Step 5: Solve for x
    x = 47,742,299,872.62/217,435.40
  6. Step 6: Final answer
    x = 219,570.04

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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.