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Finding the Fourth Proportional to 714,440.33, 986,745.92 and 470,515.49

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Solution

The fourth proportional to 714,440.33, 986,745.92 and 470,515.49 is: 649,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,440.33 : 986,745.92 = 470,515.49 : x
  2. Step 2: Convert to fraction form
    714,440.33/986,745.92 = 470,515.49/x
  3. Step 3: Cross multiply
    714,440.33x = 986,745.92 × 470,515.49
  4. Step 4: Simplify right side
    714,440.33x = 464,279,240,054.30
  5. Step 5: Solve for x
    x = 464,279,240,054.30/714,440.33
  6. Step 6: Final answer
    x = 649,850.27

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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.