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Finding the Fourth Proportional to 452,860.80, 679,809.60 and 265,977.60

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Solution

The fourth proportional to 452,860.80, 679,809.60 and 265,977.60 is: 399,270.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,860.80 : 679,809.60 = 265,977.60 : x
  2. Step 2: Convert to fraction form
    452,860.80/679,809.60 = 265,977.60/x
  3. Step 3: Cross multiply
    452,860.80x = 679,809.60 × 265,977.60
  4. Step 4: Simplify right side
    452,860.80x = 180,814,125,864.96
  5. Step 5: Solve for x
    x = 180,814,125,864.96/452,860.80
  6. Step 6: Final answer
    x = 399,270.87

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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.