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Finding the Fourth Proportional to 440,418.98, 608,051.14 and 395,016.86

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Solution

The fourth proportional to 440,418.98, 608,051.14 and 395,016.86 is: 545,368.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,418.98 : 608,051.14 = 395,016.86 : x
  2. Step 2: Convert to fraction form
    440,418.98/608,051.14 = 395,016.86/x
  3. Step 3: Cross multiply
    440,418.98x = 608,051.14 × 395,016.86
  4. Step 4: Simplify right side
    440,418.98x = 240,190,452,042.22
  5. Step 5: Solve for x
    x = 240,190,452,042.22/440,418.98
  6. Step 6: Final answer
    x = 545,368.08

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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.