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Finding the Fourth Proportional to 355,513.48, 490,603.38 and 194,369.16

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Solution

The fourth proportional to 355,513.48, 490,603.38 and 194,369.16 is: 268,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,513.48 : 490,603.38 = 194,369.16 : x
  2. Step 2: Convert to fraction form
    355,513.48/490,603.38 = 194,369.16/x
  3. Step 3: Cross multiply
    355,513.48x = 490,603.38 × 194,369.16
  4. Step 4: Simplify right side
    355,513.48x = 95,358,166,863.76
  5. Step 5: Solve for x
    x = 95,358,166,863.76/355,513.48
  6. Step 6: Final answer
    x = 268,226.59

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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.