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Finding the Fourth Proportional to 531,301.89, 733,190.16 and 289,583.72

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Solution

The fourth proportional to 531,301.89, 733,190.16 and 289,583.72 is: 399,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,301.89 : 733,190.16 = 289,583.72 : x
  2. Step 2: Convert to fraction form
    531,301.89/733,190.16 = 289,583.72/x
  3. Step 3: Cross multiply
    531,301.89x = 733,190.16 × 289,583.72
  4. Step 4: Simplify right side
    531,301.89x = 212,319,934,000.20
  5. Step 5: Solve for x
    x = 212,319,934,000.20/531,301.89
  6. Step 6: Final answer
    x = 399,622.02

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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.