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Finding the Fourth Proportional to 440,598.42, 608,029.38 and 239,394.42

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Solution

The fourth proportional to 440,598.42, 608,029.38 and 239,394.42 is: 330,366.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,598.42 : 608,029.38 = 239,394.42 : x
  2. Step 2: Convert to fraction form
    440,598.42/608,029.38 = 239,394.42/x
  3. Step 3: Cross multiply
    440,598.42x = 608,029.38 × 239,394.42
  4. Step 4: Simplify right side
    440,598.42x = 145,558,840,768.06
  5. Step 5: Solve for x
    x = 145,558,840,768.06/440,598.42
  6. Step 6: Final answer
    x = 330,366.23

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Half scale
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Double scale
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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.