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Finding the Fourth Proportional to 568,304.89, 784,259.14 and 313,654.25

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Solution

The fourth proportional to 568,304.89, 784,259.14 and 313,654.25 is: 432,841.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,304.89 : 784,259.14 = 313,654.25 : x
  2. Step 2: Convert to fraction form
    568,304.89/784,259.14 = 313,654.25/x
  3. Step 3: Cross multiply
    568,304.89x = 784,259.14 × 313,654.25
  4. Step 4: Simplify right side
    568,304.89x = 245,986,212,362.35
  5. Step 5: Solve for x
    x = 245,986,212,362.35/568,304.89
  6. Step 6: Final answer
    x = 432,841.98

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Double scale
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Similar ratio
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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.