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Finding the Fourth Proportional to 478,673.94, 660,577.74 and 263,810.90

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Solution

The fourth proportional to 478,673.94, 660,577.74 and 263,810.90 is: 364,063.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,673.94 : 660,577.74 = 263,810.90 : x
  2. Step 2: Convert to fraction form
    478,673.94/660,577.74 = 263,810.90/x
  3. Step 3: Cross multiply
    478,673.94x = 660,577.74 × 263,810.90
  4. Step 4: Simplify right side
    478,673.94x = 174,267,608,109.37
  5. Step 5: Solve for x
    x = 174,267,608,109.37/478,673.94
  6. Step 6: Final answer
    x = 364,063.29

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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.