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Finding the Fourth Proportional to 568,616.60, 784,675.80 and 313,962.32

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Solution

The fourth proportional to 568,616.60, 784,675.80 and 313,962.32 is: 433,259.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,616.60 : 784,675.80 = 313,962.32 : x
  2. Step 2: Convert to fraction form
    568,616.60/784,675.80 = 313,962.32/x
  3. Step 3: Cross multiply
    568,616.60x = 784,675.80 × 313,962.32
  4. Step 4: Simplify right side
    568,616.60x = 246,358,634,615.86
  5. Step 5: Solve for x
    x = 246,358,634,615.86/568,616.60
  6. Step 6: Final answer
    x = 433,259.66

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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.