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Finding the Fourth Proportional to 530,660.70, 732,324.87 and 288,956.52

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Solution

The fourth proportional to 530,660.70, 732,324.87 and 288,956.52 is: 398,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,660.70 : 732,324.87 = 288,956.52 : x
  2. Step 2: Convert to fraction form
    530,660.70/732,324.87 = 288,956.52/x
  3. Step 3: Cross multiply
    530,660.70x = 732,324.87 × 288,956.52
  4. Step 4: Simplify right side
    530,660.70x = 211,610,045,944.65
  5. Step 5: Solve for x
    x = 211,610,045,944.65/530,660.70
  6. Step 6: Final answer
    x = 398,767.13

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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.