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Finding the Fourth Proportional to 446,987.20, 616,842.18 and 245,783.20

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Solution

The fourth proportional to 446,987.20, 616,842.18 and 245,783.20 is: 339,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,987.20 : 616,842.18 = 245,783.20 : x
  2. Step 2: Convert to fraction form
    446,987.20/616,842.18 = 245,783.20/x
  3. Step 3: Cross multiply
    446,987.20x = 616,842.18 × 245,783.20
  4. Step 4: Simplify right side
    446,987.20x = 151,609,444,895.38
  5. Step 5: Solve for x
    x = 151,609,444,895.38/446,987.20
  6. Step 6: Final answer
    x = 339,180.73

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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.