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Finding the Fourth Proportional to 326,772.90, 450,814.35 and 205,700.58

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Solution

The fourth proportional to 326,772.90, 450,814.35 and 205,700.58 is: 283,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,772.90 : 450,814.35 = 205,700.58 : x
  2. Step 2: Convert to fraction form
    326,772.90/450,814.35 = 205,700.58/x
  3. Step 3: Cross multiply
    326,772.90x = 450,814.35 × 205,700.58
  4. Step 4: Simplify right side
    326,772.90x = 92,732,773,267.32
  5. Step 5: Solve for x
    x = 92,732,773,267.32/326,772.90
  6. Step 6: Final answer
    x = 283,783.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.