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Finding the Fourth Proportional to 531,560.10, 733,525.95 and 289,840.71

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Solution

The fourth proportional to 531,560.10, 733,525.95 and 289,840.71 is: 399,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,560.10 : 733,525.95 = 289,840.71 : x
  2. Step 2: Convert to fraction form
    531,560.10/733,525.95 = 289,840.71/x
  3. Step 3: Cross multiply
    531,560.10x = 733,525.95 × 289,840.71
  4. Step 4: Simplify right side
    531,560.10x = 212,605,682,151.43
  5. Step 5: Solve for x
    x = 212,605,682,151.43/531,560.10
  6. Step 6: Final answer
    x = 399,965.46

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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.