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Finding the Fourth Proportional to 570,738.48, 787,609.44 and 316,084.20

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Solution

The fourth proportional to 570,738.48, 787,609.44 and 316,084.20 is: 436,190.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,738.48 : 787,609.44 = 316,084.20 : x
  2. Step 2: Convert to fraction form
    570,738.48/787,609.44 = 316,084.20/x
  3. Step 3: Cross multiply
    570,738.48x = 787,609.44 × 316,084.20
  4. Step 4: Simplify right side
    570,738.48x = 248,950,899,754.85
  5. Step 5: Solve for x
    x = 248,950,899,754.85/570,738.48
  6. Step 6: Final answer
    x = 436,190.84

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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.