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Finding the Fourth Proportional to 493,664.40, 692,704.80 and 493,664.40

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Solution

The fourth proportional to 493,664.40, 692,704.80 and 493,664.40 is: 692,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,664.40 : 692,704.80 = 493,664.40 : x
  2. Step 2: Convert to fraction form
    493,664.40/692,704.80 = 493,664.40/x
  3. Step 3: Cross multiply
    493,664.40x = 692,704.80 × 493,664.40
  4. Step 4: Simplify right side
    493,664.40x = 341,963,699,469.12
  5. Step 5: Solve for x
    x = 341,963,699,469.12/493,664.40
  6. Step 6: Final answer
    x = 692,704.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.