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Finding the Fourth Proportional to 437,570.72, 655,480.59 and 347,764.98

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Solution

The fourth proportional to 437,570.72, 655,480.59 and 347,764.98 is: 520,951.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,570.72 : 655,480.59 = 347,764.98 : x
  2. Step 2: Convert to fraction form
    437,570.72/655,480.59 = 347,764.98/x
  3. Step 3: Cross multiply
    437,570.72x = 655,480.59 × 347,764.98
  4. Step 4: Simplify right side
    437,570.72x = 227,953,194,271.74
  5. Step 5: Solve for x
    x = 227,953,194,271.74/437,570.72
  6. Step 6: Final answer
    x = 520,951.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.