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Finding the Fourth Proportional to 465,987.09, 697,859.62 and 265,700.28

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Solution

The fourth proportional to 465,987.09, 697,859.62 and 265,700.28 is: 397,911.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,987.09 : 697,859.62 = 265,700.28 : x
  2. Step 2: Convert to fraction form
    465,987.09/697,859.62 = 265,700.28/x
  3. Step 3: Cross multiply
    465,987.09x = 697,859.62 × 265,700.28
  4. Step 4: Simplify right side
    465,987.09x = 185,421,498,387.42
  5. Step 5: Solve for x
    x = 185,421,498,387.42/465,987.09
  6. Step 6: Final answer
    x = 397,911.23

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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.