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Finding the Fourth Proportional to 526,546.60, 787,515.90 and 470,789.80

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Solution

The fourth proportional to 526,546.60, 787,515.90 and 470,789.80 is: 704,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,546.60 : 787,515.90 = 470,789.80 : x
  2. Step 2: Convert to fraction form
    526,546.60/787,515.90 = 470,789.80/x
  3. Step 3: Cross multiply
    526,546.60x = 787,515.90 × 470,789.80
  4. Step 4: Simplify right side
    526,546.60x = 370,754,453,057.82
  5. Step 5: Solve for x
    x = 370,754,453,057.82/526,546.60
  6. Step 6: Final answer
    x = 704,124.67

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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.