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Finding the Fourth Proportional to 704,833.79, 972,671.49 and 382,543.83

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Solution

The fourth proportional to 704,833.79, 972,671.49 and 382,543.83 is: 527,910.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,833.79 : 972,671.49 = 382,543.83 : x
  2. Step 2: Convert to fraction form
    704,833.79/972,671.49 = 382,543.83/x
  3. Step 3: Cross multiply
    704,833.79x = 972,671.49 × 382,543.83
  4. Step 4: Simplify right side
    704,833.79x = 372,089,477,116.41
  5. Step 5: Solve for x
    x = 372,089,477,116.41/704,833.79
  6. Step 6: Final answer
    x = 527,910.96

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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.