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Finding the Fourth Proportional to 574,414.34, 792,660.74 and 316,241.01

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Solution

The fourth proportional to 574,414.34, 792,660.74 and 316,241.01 is: 436,395.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,414.34 : 792,660.74 = 316,241.01 : x
  2. Step 2: Convert to fraction form
    574,414.34/792,660.74 = 316,241.01/x
  3. Step 3: Cross multiply
    574,414.34x = 792,660.74 × 316,241.01
  4. Step 4: Simplify right side
    574,414.34x = 250,671,831,423.74
  5. Step 5: Solve for x
    x = 250,671,831,423.74/574,414.34
  6. Step 6: Final answer
    x = 436,395.50

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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.