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Finding the Fourth Proportional to 353,911.53, 488,381.07 and 192,765.81

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Solution

The fourth proportional to 353,911.53, 488,381.07 and 192,765.81 is: 266,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,911.53 : 488,381.07 = 192,765.81 : x
  2. Step 2: Convert to fraction form
    353,911.53/488,381.07 = 192,765.81/x
  3. Step 3: Cross multiply
    353,911.53x = 488,381.07 × 192,765.81
  4. Step 4: Simplify right side
    353,911.53x = 94,143,172,547.22
  5. Step 5: Solve for x
    x = 94,143,172,547.22/353,911.53
  6. Step 6: Final answer
    x = 266,007.64

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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.