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Finding the Fourth Proportional to 470,118.21, 648,774.41 and 255,267.33

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Solution

The fourth proportional to 470,118.21, 648,774.41 and 255,267.33 is: 352,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,118.21 : 648,774.41 = 255,267.33 : x
  2. Step 2: Convert to fraction form
    470,118.21/648,774.41 = 255,267.33/x
  3. Step 3: Cross multiply
    470,118.21x = 648,774.41 × 255,267.33
  4. Step 4: Simplify right side
    470,118.21x = 165,610,911,413.03
  5. Step 5: Solve for x
    x = 165,610,911,413.03/470,118.21
  6. Step 6: Final answer
    x = 352,275.04

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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.