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Finding the Fourth Proportional to 519,169.14, 716,175.81 and 358,103.88

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Solution

The fourth proportional to 519,169.14, 716,175.81 and 358,103.88 is: 493,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,169.14 : 716,175.81 = 358,103.88 : x
  2. Step 2: Convert to fraction form
    519,169.14/716,175.81 = 358,103.88/x
  3. Step 3: Cross multiply
    519,169.14x = 716,175.81 × 358,103.88
  4. Step 4: Simplify right side
    519,169.14x = 256,465,336,323.14
  5. Step 5: Solve for x
    x = 256,465,336,323.14/519,169.14
  6. Step 6: Final answer
    x = 493,991.87

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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.