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Finding the Fourth Proportional to 450,365.33, 621,498.53 and 256,766.88

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Solution

The fourth proportional to 450,365.33, 621,498.53 and 256,766.88 is: 354,335.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,365.33 : 621,498.53 = 256,766.88 : x
  2. Step 2: Convert to fraction form
    450,365.33/621,498.53 = 256,766.88/x
  3. Step 3: Cross multiply
    450,365.33x = 621,498.53 × 256,766.88
  4. Step 4: Simplify right side
    450,365.33x = 159,580,237,188.85
  5. Step 5: Solve for x
    x = 159,580,237,188.85/450,365.33
  6. Step 6: Final answer
    x = 354,335.09

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1.5x scale

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.