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Finding the Fourth Proportional to 738,099.92, 1,018,581 and 415,813.88

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Solution

The fourth proportional to 738,099.92, 1,018,581 and 415,813.88 is: 573,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,099.92 : 1,018,581 = 415,813.88 : x
  2. Step 2: Convert to fraction form
    738,099.92/1,018,581 = 415,813.88/x
  3. Step 3: Cross multiply
    738,099.92x = 1,018,581 × 415,813.88
  4. Step 4: Simplify right side
    738,099.92x = 423,540,117,704.28
  5. Step 5: Solve for x
    x = 423,540,117,704.28/738,099.92
  6. Step 6: Final answer
    x = 573,824.91

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1.5x scale

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.