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Finding the Fourth Proportional to 874,045.98, 1,206,522 and 683,120.88

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Solution

The fourth proportional to 874,045.98, 1,206,522 and 683,120.88 is: 942,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,045.98 : 1,206,522 = 683,120.88 : x
  2. Step 2: Convert to fraction form
    874,045.98/1,206,522 = 683,120.88/x
  3. Step 3: Cross multiply
    874,045.98x = 1,206,522 × 683,120.88
  4. Step 4: Simplify right side
    874,045.98x = 824,200,370,379.36
  5. Step 5: Solve for x
    x = 824,200,370,379.36/874,045.98
  6. Step 6: Final answer
    x = 942,971.41

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1.5x scale

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.