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Finding the Fourth Proportional to 568,433.16, 784,439.64 and 313,783.74

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Solution

The fourth proportional to 568,433.16, 784,439.64 and 313,783.74 is: 433,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,433.16 : 784,439.64 = 313,783.74 : x
  2. Step 2: Convert to fraction form
    568,433.16/784,439.64 = 313,783.74/x
  3. Step 3: Cross multiply
    568,433.16x = 784,439.64 × 313,783.74
  4. Step 4: Simplify right side
    568,433.16x = 246,144,404,043.45
  5. Step 5: Solve for x
    x = 246,144,404,043.45/568,433.16
  6. Step 6: Final answer
    x = 433,022.60

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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.