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Finding the Fourth Proportional to 453,915.90, 680,873.85 and 383,057.10

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Solution

The fourth proportional to 453,915.90, 680,873.85 and 383,057.10 is: 574,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,915.90 : 680,873.85 = 383,057.10 : x
  2. Step 2: Convert to fraction form
    453,915.90/680,873.85 = 383,057.10/x
  3. Step 3: Cross multiply
    453,915.90x = 680,873.85 × 383,057.10
  4. Step 4: Simplify right side
    453,915.90x = 260,813,562,446.84
  5. Step 5: Solve for x
    x = 260,813,562,446.84/453,915.90
  6. Step 6: Final answer
    x = 574,585.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.