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Finding the Fourth Proportional to 531,216.92, 733,057.98 and 289,494.34

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Solution

The fourth proportional to 531,216.92, 733,057.98 and 289,494.34 is: 399,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,216.92 : 733,057.98 = 289,494.34 : x
  2. Step 2: Convert to fraction form
    531,216.92/733,057.98 = 289,494.34/x
  3. Step 3: Cross multiply
    531,216.92x = 733,057.98 × 289,494.34
  4. Step 4: Simplify right side
    531,216.92x = 212,216,136,101.83
  5. Step 5: Solve for x
    x = 212,216,136,101.83/531,216.92
  6. Step 6: Final answer
    x = 399,490.54

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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.