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Finding the Fourth Proportional to 634,846.56, 876,095.28 and 348,358.56

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Solution

The fourth proportional to 634,846.56, 876,095.28 and 348,358.56 is: 480,738.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,846.56 : 876,095.28 = 348,358.56 : x
  2. Step 2: Convert to fraction form
    634,846.56/876,095.28 = 348,358.56/x
  3. Step 3: Cross multiply
    634,846.56x = 876,095.28 × 348,358.56
  4. Step 4: Simplify right side
    634,846.56x = 305,195,290,163.60
  5. Step 5: Solve for x
    x = 305,195,290,163.60/634,846.56
  6. Step 6: Final answer
    x = 480,738.67

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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.