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Finding the Fourth Proportional to 482,666.30, 723,999.45 and 305,956.70

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Solution

The fourth proportional to 482,666.30, 723,999.45 and 305,956.70 is: 458,935.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,666.30 : 723,999.45 = 305,956.70 : x
  2. Step 2: Convert to fraction form
    482,666.30/723,999.45 = 305,956.70/x
  3. Step 3: Cross multiply
    482,666.30x = 723,999.45 × 305,956.70
  4. Step 4: Simplify right side
    482,666.30x = 221,512,482,523.82
  5. Step 5: Solve for x
    x = 221,512,482,523.82/482,666.30
  6. Step 6: Final answer
    x = 458,935.05

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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.