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Finding the Fourth Proportional to 546,412.53, 819,620.34 and 191,343.51

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Solution

The fourth proportional to 546,412.53, 819,620.34 and 191,343.51 is: 287,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,412.53 : 819,620.34 = 191,343.51 : x
  2. Step 2: Convert to fraction form
    546,412.53/819,620.34 = 191,343.51/x
  3. Step 3: Cross multiply
    546,412.53x = 819,620.34 × 191,343.51
  4. Step 4: Simplify right side
    546,412.53x = 156,829,032,005.46
  5. Step 5: Solve for x
    x = 156,829,032,005.46/546,412.53
  6. Step 6: Final answer
    x = 287,015.80

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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.