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Finding the Fourth Proportional to 541,347.18, 747,032.46 and 308,783.31

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Solution

The fourth proportional to 541,347.18, 747,032.46 and 308,783.31 is: 426,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,347.18 : 747,032.46 = 308,783.31 : x
  2. Step 2: Convert to fraction form
    541,347.18/747,032.46 = 308,783.31/x
  3. Step 3: Cross multiply
    541,347.18x = 747,032.46 × 308,783.31
  4. Step 4: Simplify right side
    541,347.18x = 230,671,155,676.24
  5. Step 5: Solve for x
    x = 230,671,155,676.24/541,347.18
  6. Step 6: Final answer
    x = 426,105.77

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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.