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Finding the Fourth Proportional to 794,521, 1,191,406.92 and 288,726.28

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Solution

The fourth proportional to 794,521, 1,191,406.92 and 288,726.28 is: 432,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,521 : 1,191,406.92 = 288,726.28 : x
  2. Step 2: Convert to fraction form
    794,521/1,191,406.92 = 288,726.28/x
  3. Step 3: Cross multiply
    794,521x = 1,191,406.92 × 288,726.28
  4. Step 4: Simplify right side
    794,521x = 343,990,487,977.86
  5. Step 5: Solve for x
    x = 343,990,487,977.86/794,521
  6. Step 6: Final answer
    x = 432,953.30

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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.