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Finding the Fourth Proportional to 471,811.12, 707,126.49 and 371,575.45

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Solution

The fourth proportional to 471,811.12, 707,126.49 and 371,575.45 is: 556,898.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,811.12 : 707,126.49 = 371,575.45 : x
  2. Step 2: Convert to fraction form
    471,811.12/707,126.49 = 371,575.45/x
  3. Step 3: Cross multiply
    471,811.12x = 707,126.49 × 371,575.45
  4. Step 4: Simplify right side
    471,811.12x = 262,750,843,728.67
  5. Step 5: Solve for x
    x = 262,750,843,728.67/471,811.12
  6. Step 6: Final answer
    x = 556,898.37

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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.