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Finding the Fourth Proportional to 235,678.03, 325,237.76 and 217,819.15

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Solution

The fourth proportional to 235,678.03, 325,237.76 and 217,819.15 is: 300,592.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,678.03 : 325,237.76 = 217,819.15 : x
  2. Step 2: Convert to fraction form
    235,678.03/325,237.76 = 217,819.15/x
  3. Step 3: Cross multiply
    235,678.03x = 325,237.76 × 217,819.15
  4. Step 4: Simplify right side
    235,678.03x = 70,843,012,431.10
  5. Step 5: Solve for x
    x = 70,843,012,431.10/235,678.03
  6. Step 6: Final answer
    x = 300,592.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.