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Finding the Fourth Proportional to 702,624.81, 969,621.44 and 380,334.82

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Solution

The fourth proportional to 702,624.81, 969,621.44 and 380,334.82 is: 524,861.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,624.81 : 969,621.44 = 380,334.82 : x
  2. Step 2: Convert to fraction form
    702,624.81/969,621.44 = 380,334.82/x
  3. Step 3: Cross multiply
    702,624.81x = 969,621.44 × 380,334.82
  4. Step 4: Simplify right side
    702,624.81x = 368,780,790,615.79
  5. Step 5: Solve for x
    x = 368,780,790,615.79/702,624.81
  6. Step 6: Final answer
    x = 524,861.62

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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.