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Finding the Fourth Proportional to 526,915.99, 790,376.01 and 127,556.12

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Solution

The fourth proportional to 526,915.99, 790,376.01 and 127,556.12 is: 191,334.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,915.99 : 790,376.01 = 127,556.12 : x
  2. Step 2: Convert to fraction form
    526,915.99/790,376.01 = 127,556.12/x
  3. Step 3: Cross multiply
    526,915.99x = 790,376.01 × 127,556.12
  4. Step 4: Simplify right side
    526,915.99x = 100,817,297,176.68
  5. Step 5: Solve for x
    x = 100,817,297,176.68/526,915.99
  6. Step 6: Final answer
    x = 191,334.67

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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.