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Finding the Fourth Proportional to 219,247.40, 329,000.70 and 144,583.40

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Solution

The fourth proportional to 219,247.40, 329,000.70 and 144,583.40 is: 216,960.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,247.40 : 329,000.70 = 144,583.40 : x
  2. Step 2: Convert to fraction form
    219,247.40/329,000.70 = 144,583.40/x
  3. Step 3: Cross multiply
    219,247.40x = 329,000.70 × 144,583.40
  4. Step 4: Simplify right side
    219,247.40x = 47,568,039,808.38
  5. Step 5: Solve for x
    x = 47,568,039,808.38/219,247.40
  6. Step 6: Final answer
    x = 216,960.57

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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.