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Finding the Fourth Proportional to 704,859.86, 972,707.47 and 382,570.04

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Solution

The fourth proportional to 704,859.86, 972,707.47 and 382,570.04 is: 527,947.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,859.86 : 972,707.47 = 382,570.04 : x
  2. Step 2: Convert to fraction form
    704,859.86/972,707.47 = 382,570.04/x
  3. Step 3: Cross multiply
    704,859.86x = 972,707.47 × 382,570.04
  4. Step 4: Simplify right side
    704,859.86x = 372,128,737,181.54
  5. Step 5: Solve for x
    x = 372,128,737,181.54/704,859.86
  6. Step 6: Final answer
    x = 527,947.12

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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.