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Finding the Fourth Proportional to 439,779.97, 606,862.90 and 248,805.66

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Solution

The fourth proportional to 439,779.97, 606,862.90 and 248,805.66 is: 343,332.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,779.97 : 606,862.90 = 248,805.66 : x
  2. Step 2: Convert to fraction form
    439,779.97/606,862.90 = 248,805.66/x
  3. Step 3: Cross multiply
    439,779.97x = 606,862.90 × 248,805.66
  4. Step 4: Simplify right side
    439,779.97x = 150,990,924,364.01
  5. Step 5: Solve for x
    x = 150,990,924,364.01/439,779.97
  6. Step 6: Final answer
    x = 343,332.88

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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.