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Finding the Fourth Proportional to 704,846.61, 972,688.79 and 382,556.71

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Solution

The fourth proportional to 704,846.61, 972,688.79 and 382,556.71 is: 527,928.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,846.61 : 972,688.79 = 382,556.71 : x
  2. Step 2: Convert to fraction form
    704,846.61/972,688.79 = 382,556.71/x
  3. Step 3: Cross multiply
    704,846.61x = 972,688.79 × 382,556.71
  4. Step 4: Simplify right side
    704,846.61x = 372,108,623,356.28
  5. Step 5: Solve for x
    x = 372,108,623,356.28/704,846.61
  6. Step 6: Final answer
    x = 527,928.51

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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.