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Finding the Fourth Proportional to 531,257.99, 733,117.26 and 289,535.76

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Solution

The fourth proportional to 531,257.99, 733,117.26 and 289,535.76 is: 399,549.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,257.99 : 733,117.26 = 289,535.76 : x
  2. Step 2: Convert to fraction form
    531,257.99/733,117.26 = 289,535.76/x
  3. Step 3: Cross multiply
    531,257.99x = 733,117.26 × 289,535.76
  4. Step 4: Simplify right side
    531,257.99x = 212,263,664,128.98
  5. Step 5: Solve for x
    x = 212,263,664,128.98/531,257.99
  6. Step 6: Final answer
    x = 399,549.13

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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.