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Finding the Fourth Proportional to 697,368.42, 962,382.60 and 391,466.84

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Solution

The fourth proportional to 697,368.42, 962,382.60 and 391,466.84 is: 540,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,368.42 : 962,382.60 = 391,466.84 : x
  2. Step 2: Convert to fraction form
    697,368.42/962,382.60 = 391,466.84/x
  3. Step 3: Cross multiply
    697,368.42x = 962,382.60 × 391,466.84
  4. Step 4: Simplify right side
    697,368.42x = 376,740,870,481.07
  5. Step 5: Solve for x
    x = 376,740,870,481.07/697,368.42
  6. Step 6: Final answer
    x = 540,232.19

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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.