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Finding the Fourth Proportional to 568,432.89, 784,435.73 and 313,782.26

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Solution

The fourth proportional to 568,432.89, 784,435.73 and 313,782.26 is: 433,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,432.89 : 784,435.73 = 313,782.26 : x
  2. Step 2: Convert to fraction form
    568,432.89/784,435.73 = 313,782.26/x
  3. Step 3: Cross multiply
    568,432.89x = 784,435.73 × 313,782.26
  4. Step 4: Simplify right side
    568,432.89x = 246,142,010,693.06
  5. Step 5: Solve for x
    x = 246,142,010,693.06/568,432.89
  6. Step 6: Final answer
    x = 433,018.59

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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.