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Finding the Fourth Proportional to 530,626.68, 732,277.99 and 288,922.52

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Solution

The fourth proportional to 530,626.68, 732,277.99 and 288,922.52 is: 398,720.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,626.68 : 732,277.99 = 288,922.52 : x
  2. Step 2: Convert to fraction form
    530,626.68/732,277.99 = 288,922.52/x
  3. Step 3: Cross multiply
    530,626.68x = 732,277.99 × 288,922.52
  4. Step 4: Simplify right side
    530,626.68x = 211,571,603,156.25
  5. Step 5: Solve for x
    x = 211,571,603,156.25/530,626.68
  6. Step 6: Final answer
    x = 398,720.25

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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.