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Finding the Fourth Proportional to 668,598.33, 922,441.31 and 381,915.44

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Solution

The fourth proportional to 668,598.33, 922,441.31 and 381,915.44 is: 526,915.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,598.33 : 922,441.31 = 381,915.44 : x
  2. Step 2: Convert to fraction form
    668,598.33/922,441.31 = 381,915.44/x
  3. Step 3: Cross multiply
    668,598.33x = 922,441.31 × 381,915.44
  4. Step 4: Simplify right side
    668,598.33x = 352,294,579,300.66
  5. Step 5: Solve for x
    x = 352,294,579,300.66/668,598.33
  6. Step 6: Final answer
    x = 526,915.13

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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.