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Finding the Fourth Proportional to 290,885.58, 401,248.08 and 177,511.50

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Solution

The fourth proportional to 290,885.58, 401,248.08 and 177,511.50 is: 244,859.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,885.58 : 401,248.08 = 177,511.50 : x
  2. Step 2: Convert to fraction form
    290,885.58/401,248.08 = 177,511.50/x
  3. Step 3: Cross multiply
    290,885.58x = 401,248.08 × 177,511.50
  4. Step 4: Simplify right side
    290,885.58x = 71,226,148,552.92
  5. Step 5: Solve for x
    x = 71,226,148,552.92/290,885.58
  6. Step 6: Final answer
    x = 244,859.67

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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.