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Finding the Fourth Proportional to 478,661.02, 660,539.22 and 263,801.02

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Solution

The fourth proportional to 478,661.02, 660,539.22 and 263,801.02 is: 364,038.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,661.02 : 660,539.22 = 263,801.02 : x
  2. Step 2: Convert to fraction form
    478,661.02/660,539.22 = 263,801.02/x
  3. Step 3: Cross multiply
    478,661.02x = 660,539.22 × 263,801.02
  4. Step 4: Simplify right side
    478,661.02x = 174,250,919,986.00
  5. Step 5: Solve for x
    x = 174,250,919,986.00/478,661.02
  6. Step 6: Final answer
    x = 364,038.25

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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.