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Finding the Fourth Proportional to 531,011.88, 732,793.38 and 289,293.96

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Solution

The fourth proportional to 531,011.88, 732,793.38 and 289,293.96 is: 399,224.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,011.88 : 732,793.38 = 289,293.96 : x
  2. Step 2: Convert to fraction form
    531,011.88/732,793.38 = 289,293.96/x
  3. Step 3: Cross multiply
    531,011.88x = 732,793.38 × 289,293.96
  4. Step 4: Simplify right side
    531,011.88x = 211,992,698,761.99
  5. Step 5: Solve for x
    x = 211,992,698,761.99/531,011.88
  6. Step 6: Final answer
    x = 399,224.02

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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.