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Finding the Fourth Proportional to 710,460.48, 1,065,661.44 and 394,716

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Solution

The fourth proportional to 710,460.48, 1,065,661.44 and 394,716 is: 592,057.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,460.48 : 1,065,661.44 = 394,716 : x
  2. Step 2: Convert to fraction form
    710,460.48/1,065,661.44 = 394,716/x
  3. Step 3: Cross multiply
    710,460.48x = 1,065,661.44 × 394,716
  4. Step 4: Simplify right side
    710,460.48x = 420,633,620,951.04
  5. Step 5: Solve for x
    x = 420,633,620,951.04/710,460.48
  6. Step 6: Final answer
    x = 592,057.73

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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.