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Finding the Fourth Proportional to 556,550.70, 768,040.22 and 314,828.12

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Solution

The fourth proportional to 556,550.70, 768,040.22 and 314,828.12 is: 434,462.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,550.70 : 768,040.22 = 314,828.12 : x
  2. Step 2: Convert to fraction form
    556,550.70/768,040.22 = 314,828.12/x
  3. Step 3: Cross multiply
    556,550.70x = 768,040.22 × 314,828.12
  4. Step 4: Simplify right side
    556,550.70x = 241,800,656,972.85
  5. Step 5: Solve for x
    x = 241,800,656,972.85/556,550.70
  6. Step 6: Final answer
    x = 434,462.95

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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.