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Finding the Fourth Proportional to 488,028.16, 672,871.52 and 373,448.80

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Solution

The fourth proportional to 488,028.16, 672,871.52 and 373,448.80 is: 514,894.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,028.16 : 672,871.52 = 373,448.80 : x
  2. Step 2: Convert to fraction form
    488,028.16/672,871.52 = 373,448.80/x
  3. Step 3: Cross multiply
    488,028.16x = 672,871.52 × 373,448.80
  4. Step 4: Simplify right side
    488,028.16x = 251,283,061,698.18
  5. Step 5: Solve for x
    x = 251,283,061,698.18/488,028.16
  6. Step 6: Final answer
    x = 514,894.59

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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.