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Finding the Fourth Proportional to 704,914.78, 972,756.30 and 382,617.98

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Solution

The fourth proportional to 704,914.78, 972,756.30 and 382,617.98 is: 527,998.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,914.78 : 972,756.30 = 382,617.98 : x
  2. Step 2: Convert to fraction form
    704,914.78/972,756.30 = 382,617.98/x
  3. Step 3: Cross multiply
    704,914.78x = 972,756.30 × 382,617.98
  4. Step 4: Simplify right side
    704,914.78x = 372,194,050,538.27
  5. Step 5: Solve for x
    x = 372,194,050,538.27/704,914.78
  6. Step 6: Final answer
    x = 527,998.65

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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.