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Finding the Fourth Proportional to 682,457.36, 941,794.42 and 376,533.72

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Solution

The fourth proportional to 682,457.36, 941,794.42 and 376,533.72 is: 519,618.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,457.36 : 941,794.42 = 376,533.72 : x
  2. Step 2: Convert to fraction form
    682,457.36/941,794.42 = 376,533.72/x
  3. Step 3: Cross multiply
    682,457.36x = 941,794.42 × 376,533.72
  4. Step 4: Simplify right side
    682,457.36x = 354,617,356,437.84
  5. Step 5: Solve for x
    x = 354,617,356,437.84/682,457.36
  6. Step 6: Final answer
    x = 519,618.33

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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.