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Finding the Fourth Proportional to 612,994.74, 846,239.06 and 474,866.21

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Solution

The fourth proportional to 612,994.74, 846,239.06 and 474,866.21 is: 655,552.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,994.74 : 846,239.06 = 474,866.21 : x
  2. Step 2: Convert to fraction form
    612,994.74/846,239.06 = 474,866.21/x
  3. Step 3: Cross multiply
    612,994.74x = 846,239.06 × 474,866.21
  4. Step 4: Simplify right side
    612,994.74x = 401,850,339,763.12
  5. Step 5: Solve for x
    x = 401,850,339,763.12/612,994.74
  6. Step 6: Final answer
    x = 655,552.67

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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.