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Finding the Fourth Proportional to 554,411.20, 829,867.20 and 536,915.20

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Solution

The fourth proportional to 554,411.20, 829,867.20 and 536,915.20 is: 803,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,411.20 : 829,867.20 = 536,915.20 : x
  2. Step 2: Convert to fraction form
    554,411.20/829,867.20 = 536,915.20/x
  3. Step 3: Cross multiply
    554,411.20x = 829,867.20 × 536,915.20
  4. Step 4: Simplify right side
    554,411.20x = 445,568,313,661.44
  5. Step 5: Solve for x
    x = 445,568,313,661.44/554,411.20
  6. Step 6: Final answer
    x = 803,678.41

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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.