Home / 691,815.73-954,729.36-401,405.37

Finding the Fourth Proportional to 691,815.73, 954,729.36 and 401,405.37

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Solution

The fourth proportional to 691,815.73, 954,729.36 and 401,405.37 is: 553,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,815.73 : 954,729.36 = 401,405.37 : x
  2. Step 2: Convert to fraction form
    691,815.73/954,729.36 = 401,405.37/x
  3. Step 3: Cross multiply
    691,815.73x = 954,729.36 × 401,405.37
  4. Step 4: Simplify right side
    691,815.73x = 383,233,492,000.66
  5. Step 5: Solve for x
    x = 383,233,492,000.66/691,815.73
  6. Step 6: Final answer
    x = 553,953.14

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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.