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Finding the Fourth Proportional to 531,082.56, 732,792.54 and 313,359.72

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Solution

The fourth proportional to 531,082.56, 732,792.54 and 313,359.72 is: 432,376.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,082.56 : 732,792.54 = 313,359.72 : x
  2. Step 2: Convert to fraction form
    531,082.56/732,792.54 = 313,359.72/x
  3. Step 3: Cross multiply
    531,082.56x = 732,792.54 × 313,359.72
  4. Step 4: Simplify right side
    531,082.56x = 229,627,665,152.49
  5. Step 5: Solve for x
    x = 229,627,665,152.49/531,082.56
  6. Step 6: Final answer
    x = 432,376.59

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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.