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Finding the Fourth Proportional to 376,135.98, 560,294.64 and 355,763.67

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Solution

The fourth proportional to 376,135.98, 560,294.64 and 355,763.67 is: 529,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,135.98 : 560,294.64 = 355,763.67 : x
  2. Step 2: Convert to fraction form
    376,135.98/560,294.64 = 355,763.67/x
  3. Step 3: Cross multiply
    376,135.98x = 560,294.64 × 355,763.67
  4. Step 4: Simplify right side
    376,135.98x = 199,332,477,407.73
  5. Step 5: Solve for x
    x = 199,332,477,407.73/376,135.98
  6. Step 6: Final answer
    x = 529,947.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.