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Finding the Fourth Proportional to 579,825.33, 869,819.99 and 180,506.40

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Solution

The fourth proportional to 579,825.33, 869,819.99 and 180,506.40 is: 270,785.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,825.33 : 869,819.99 = 180,506.40 : x
  2. Step 2: Convert to fraction form
    579,825.33/869,819.99 = 180,506.40/x
  3. Step 3: Cross multiply
    579,825.33x = 869,819.99 × 180,506.40
  4. Step 4: Simplify right side
    579,825.33x = 157,008,074,140.40
  5. Step 5: Solve for x
    x = 157,008,074,140.40/579,825.33
  6. Step 6: Final answer
    x = 270,785.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.