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Finding the Fourth Proportional to 301,861.99, 416,130.72 and 210,935.64

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Solution

The fourth proportional to 301,861.99, 416,130.72 and 210,935.64 is: 290,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,861.99 : 416,130.72 = 210,935.64 : x
  2. Step 2: Convert to fraction form
    301,861.99/416,130.72 = 210,935.64/x
  3. Step 3: Cross multiply
    301,861.99x = 416,130.72 × 210,935.64
  4. Step 4: Simplify right side
    301,861.99x = 87,776,800,516.34
  5. Step 5: Solve for x
    x = 87,776,800,516.34/301,861.99
  6. Step 6: Final answer
    x = 290,784.54

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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.