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Finding the Fourth Proportional to 530,956.53, 732,711.56 and 289,242

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Solution

The fourth proportional to 530,956.53, 732,711.56 and 289,242 is: 399,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,956.53 : 732,711.56 = 289,242 : x
  2. Step 2: Convert to fraction form
    530,956.53/732,711.56 = 289,242/x
  3. Step 3: Cross multiply
    530,956.53x = 732,711.56 × 289,242
  4. Step 4: Simplify right side
    530,956.53x = 211,930,955,591.31
  5. Step 5: Solve for x
    x = 211,930,955,591.31/530,956.53
  6. Step 6: Final answer
    x = 399,149.35

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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.