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Finding the Fourth Proportional to 571,697.32, 788,915.28 and 317,043.04

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Solution

The fourth proportional to 571,697.32, 788,915.28 and 317,043.04 is: 437,504.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,697.32 : 788,915.28 = 317,043.04 : x
  2. Step 2: Convert to fraction form
    571,697.32/788,915.28 = 317,043.04/x
  3. Step 3: Cross multiply
    571,697.32x = 788,915.28 × 317,043.04
  4. Step 4: Simplify right side
    571,697.32x = 250,120,098,673.65
  5. Step 5: Solve for x
    x = 250,120,098,673.65/571,697.32
  6. Step 6: Final answer
    x = 437,504.41

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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.