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Finding the Fourth Proportional to 478,830.76, 718,464.48 and 179,334.52

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Solution

The fourth proportional to 478,830.76, 718,464.48 and 179,334.52 is: 269,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,830.76 : 718,464.48 = 179,334.52 : x
  2. Step 2: Convert to fraction form
    478,830.76/718,464.48 = 179,334.52/x
  3. Step 3: Cross multiply
    478,830.76x = 718,464.48 × 179,334.52
  4. Step 4: Simplify right side
    478,830.76x = 128,845,482,657.85
  5. Step 5: Solve for x
    x = 128,845,482,657.85/478,830.76
  6. Step 6: Final answer
    x = 269,083.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.