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Finding the Fourth Proportional to 403,200.66, 556,416.96 and 219,439.92

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Solution

The fourth proportional to 403,200.66, 556,416.96 and 219,439.92 is: 302,827.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,200.66 : 556,416.96 = 219,439.92 : x
  2. Step 2: Convert to fraction form
    403,200.66/556,416.96 = 219,439.92/x
  3. Step 3: Cross multiply
    403,200.66x = 556,416.96 × 219,439.92
  4. Step 4: Simplify right side
    403,200.66x = 122,100,093,189.04
  5. Step 5: Solve for x
    x = 122,100,093,189.04/403,200.66
  6. Step 6: Final answer
    x = 302,827.12

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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.