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Finding the Fourth Proportional to 465,987.12, 697,859.60 and 265,700.31

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Solution

The fourth proportional to 465,987.12, 697,859.60 and 265,700.31 is: 397,911.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,987.12 : 697,859.60 = 265,700.31 : x
  2. Step 2: Convert to fraction form
    465,987.12/697,859.60 = 265,700.31/x
  3. Step 3: Cross multiply
    465,987.12x = 697,859.60 × 265,700.31
  4. Step 4: Simplify right side
    465,987.12x = 185,421,512,056.48
  5. Step 5: Solve for x
    x = 185,421,512,056.48/465,987.12
  6. Step 6: Final answer
    x = 397,911.24

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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.