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Finding the Fourth Proportional to 633,715.56, 874,527.36 and 347,246.40

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Solution

The fourth proportional to 633,715.56, 874,527.36 and 347,246.40 is: 479,199.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,715.56 : 874,527.36 = 347,246.40 : x
  2. Step 2: Convert to fraction form
    633,715.56/874,527.36 = 347,246.40/x
  3. Step 3: Cross multiply
    633,715.56x = 874,527.36 × 347,246.40
  4. Step 4: Simplify right side
    633,715.56x = 303,676,477,461.50
  5. Step 5: Solve for x
    x = 303,676,477,461.50/633,715.56
  6. Step 6: Final answer
    x = 479,199.97

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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.