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Finding the Fourth Proportional to 472,995.36, 652,735.44 and 258,140.25

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Solution

The fourth proportional to 472,995.36, 652,735.44 and 258,140.25 is: 356,234.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,995.36 : 652,735.44 = 258,140.25 : x
  2. Step 2: Convert to fraction form
    472,995.36/652,735.44 = 258,140.25/x
  3. Step 3: Cross multiply
    472,995.36x = 652,735.44 × 258,140.25
  4. Step 4: Simplify right side
    472,995.36x = 168,497,289,665.46
  5. Step 5: Solve for x
    x = 168,497,289,665.46/472,995.36
  6. Step 6: Final answer
    x = 356,234.55

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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.