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Finding the Fourth Proportional to 347,389.45, 520,817.42 and 176,470.81

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Solution

The fourth proportional to 347,389.45, 520,817.42 and 176,470.81 is: 264,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,389.45 : 520,817.42 = 176,470.81 : x
  2. Step 2: Convert to fraction form
    347,389.45/520,817.42 = 176,470.81/x
  3. Step 3: Cross multiply
    347,389.45x = 520,817.42 × 176,470.81
  4. Step 4: Simplify right side
    347,389.45x = 91,909,071,087.16
  5. Step 5: Solve for x
    x = 91,909,071,087.16/347,389.45
  6. Step 6: Final answer
    x = 264,570.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.