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Finding the Fourth Proportional to 219,349.80, 329,024.70 and 217,967.40

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Solution

The fourth proportional to 219,349.80, 329,024.70 and 217,967.40 is: 326,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,349.80 : 329,024.70 = 217,967.40 : x
  2. Step 2: Convert to fraction form
    219,349.80/329,024.70 = 217,967.40/x
  3. Step 3: Cross multiply
    219,349.80x = 329,024.70 × 217,967.40
  4. Step 4: Simplify right side
    219,349.80x = 71,716,658,394.78
  5. Step 5: Solve for x
    x = 71,716,658,394.78/219,349.80
  6. Step 6: Final answer
    x = 326,951.10

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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.