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Finding the Fourth Proportional to 470,250.72, 648,950.70 and 255,394.98

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Solution

The fourth proportional to 470,250.72, 648,950.70 and 255,394.98 is: 352,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,250.72 : 648,950.70 = 255,394.98 : x
  2. Step 2: Convert to fraction form
    470,250.72/648,950.70 = 255,394.98/x
  3. Step 3: Cross multiply
    470,250.72x = 648,950.70 × 255,394.98
  4. Step 4: Simplify right side
    470,250.72x = 165,738,751,047.49
  5. Step 5: Solve for x
    x = 165,738,751,047.49/470,250.72
  6. Step 6: Final answer
    x = 352,447.63

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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.