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Finding the Fourth Proportional to 531,316.99, 733,195.96 and 289,594.36

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Solution

The fourth proportional to 531,316.99, 733,195.96 and 289,594.36 is: 399,628.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,316.99 : 733,195.96 = 289,594.36 : x
  2. Step 2: Convert to fraction form
    531,316.99/733,195.96 = 289,594.36/x
  3. Step 3: Cross multiply
    531,316.99x = 733,195.96 × 289,594.36
  4. Step 4: Simplify right side
    531,316.99x = 212,329,414,790.79
  5. Step 5: Solve for x
    x = 212,329,414,790.79/531,316.99
  6. Step 6: Final answer
    x = 399,628.51

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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.