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Finding the Fourth Proportional to 347,783.32, 479,958.96 and 194,812.57

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Solution

The fourth proportional to 347,783.32, 479,958.96 and 194,812.57 is: 268,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,783.32 : 479,958.96 = 194,812.57 : x
  2. Step 2: Convert to fraction form
    347,783.32/479,958.96 = 194,812.57/x
  3. Step 3: Cross multiply
    347,783.32x = 479,958.96 × 194,812.57
  4. Step 4: Simplify right side
    347,783.32x = 93,502,038,492.13
  5. Step 5: Solve for x
    x = 93,502,038,492.13/347,783.32
  6. Step 6: Final answer
    x = 268,851.42

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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.