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Finding the Fourth Proportional to 353,154.48, 487,350.74 and 192,009.60

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Solution

The fourth proportional to 353,154.48, 487,350.74 and 192,009.60 is: 264,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,154.48 : 487,350.74 = 192,009.60 : x
  2. Step 2: Convert to fraction form
    353,154.48/487,350.74 = 192,009.60/x
  3. Step 3: Cross multiply
    353,154.48x = 487,350.74 × 192,009.60
  4. Step 4: Simplify right side
    353,154.48x = 93,576,021,002.42
  5. Step 5: Solve for x
    x = 93,576,021,002.42/353,154.48
  6. Step 6: Final answer
    x = 264,971.92

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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.