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Finding the Fourth Proportional to 470,028.48, 648,012.92 and 373,554.48

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Solution

The fourth proportional to 470,028.48, 648,012.92 and 373,554.48 is: 515,007.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,028.48 : 648,012.92 = 373,554.48 : x
  2. Step 2: Convert to fraction form
    470,028.48/648,012.92 = 373,554.48/x
  3. Step 3: Cross multiply
    470,028.48x = 648,012.92 × 373,554.48
  4. Step 4: Simplify right side
    470,028.48x = 242,068,129,363.88
  5. Step 5: Solve for x
    x = 242,068,129,363.88/470,028.48
  6. Step 6: Final answer
    x = 515,007.37

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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.