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Finding the Fourth Proportional to 568,124.20, 784,010.64 and 313,475.32

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Solution

The fourth proportional to 568,124.20, 784,010.64 and 313,475.32 is: 432,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,124.20 : 784,010.64 = 313,475.32 : x
  2. Step 2: Convert to fraction form
    568,124.20/784,010.64 = 313,475.32/x
  3. Step 3: Cross multiply
    568,124.20x = 784,010.64 × 313,475.32
  4. Step 4: Simplify right side
    568,124.20x = 245,767,986,257.41
  5. Step 5: Solve for x
    x = 245,767,986,257.41/568,124.20
  6. Step 6: Final answer
    x = 432,595.52

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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.