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Finding the Fourth Proportional to 467,532.80, 700,780.80 and 257,321.60

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Solution

The fourth proportional to 467,532.80, 700,780.80 and 257,321.60 is: 385,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,532.80 : 700,780.80 = 257,321.60 : x
  2. Step 2: Convert to fraction form
    467,532.80/700,780.80 = 257,321.60/x
  3. Step 3: Cross multiply
    467,532.80x = 700,780.80 × 257,321.60
  4. Step 4: Simplify right side
    467,532.80x = 180,326,036,705.28
  5. Step 5: Solve for x
    x = 180,326,036,705.28/467,532.80
  6. Step 6: Final answer
    x = 385,697.08

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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.