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Finding the Fourth Proportional to 496,783.76, 745,182.12 and 216,290.48

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Solution

The fourth proportional to 496,783.76, 745,182.12 and 216,290.48 is: 324,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,783.76 : 745,182.12 = 216,290.48 : x
  2. Step 2: Convert to fraction form
    496,783.76/745,182.12 = 216,290.48/x
  3. Step 3: Cross multiply
    496,783.76x = 745,182.12 × 216,290.48
  4. Step 4: Simplify right side
    496,783.76x = 161,175,798,422.22
  5. Step 5: Solve for x
    x = 161,175,798,422.22/496,783.76
  6. Step 6: Final answer
    x = 324,438.54

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1.5x scale

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.