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Finding the Fourth Proportional to 531,259.98, 733,120.02 and 289,537.76

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Solution

The fourth proportional to 531,259.98, 733,120.02 and 289,537.76 is: 399,551.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,259.98 : 733,120.02 = 289,537.76 : x
  2. Step 2: Convert to fraction form
    531,259.98/733,120.02 = 289,537.76/x
  3. Step 3: Cross multiply
    531,259.98x = 733,120.02 × 289,537.76
  4. Step 4: Simplify right side
    531,259.98x = 212,265,928,401.96
  5. Step 5: Solve for x
    x = 212,265,928,401.96/531,259.98
  6. Step 6: Final answer
    x = 399,551.89

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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.