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Finding the Fourth Proportional to 691,248, 953,922.24 and 373,296

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Solution

The fourth proportional to 691,248, 953,922.24 and 373,296 is: 515,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,248 : 953,922.24 = 373,296 : x
  2. Step 2: Convert to fraction form
    691,248/953,922.24 = 373,296/x
  3. Step 3: Cross multiply
    691,248x = 953,922.24 × 373,296
  4. Step 4: Simplify right side
    691,248x = 356,095,356,503.04
  5. Step 5: Solve for x
    x = 356,095,356,503.04/691,248
  6. Step 6: Final answer
    x = 515,148.48

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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.