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Finding the Fourth Proportional to 519,195.44, 716,814.08 and 398,104.12

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Solution

The fourth proportional to 519,195.44, 716,814.08 and 398,104.12 is: 549,632.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,195.44 : 716,814.08 = 398,104.12 : x
  2. Step 2: Convert to fraction form
    519,195.44/716,814.08 = 398,104.12/x
  3. Step 3: Cross multiply
    519,195.44x = 716,814.08 × 398,104.12
  4. Step 4: Simplify right side
    519,195.44x = 285,366,638,522.01
  5. Step 5: Solve for x
    x = 285,366,638,522.01/519,195.44
  6. Step 6: Final answer
    x = 549,632.41

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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.