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Finding the Fourth Proportional to 568,089.46, 784,247.54 and 353,298.72

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Solution

The fourth proportional to 568,089.46, 784,247.54 and 353,298.72 is: 487,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,089.46 : 784,247.54 = 353,298.72 : x
  2. Step 2: Convert to fraction form
    568,089.46/784,247.54 = 353,298.72/x
  3. Step 3: Cross multiply
    568,089.46x = 784,247.54 × 353,298.72
  4. Step 4: Simplify right side
    568,089.46x = 277,073,652,045.15
  5. Step 5: Solve for x
    x = 277,073,652,045.15/568,089.46
  6. Step 6: Final answer
    x = 487,728.91

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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.