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Finding the Fourth Proportional to 682,410.67, 941,720.22 and 376,489.51

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Solution

The fourth proportional to 682,410.67, 941,720.22 and 376,489.51 is: 519,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,410.67 : 941,720.22 = 376,489.51 : x
  2. Step 2: Convert to fraction form
    682,410.67/941,720.22 = 376,489.51/x
  3. Step 3: Cross multiply
    682,410.67x = 941,720.22 × 376,489.51
  4. Step 4: Simplify right side
    682,410.67x = 354,547,781,830.59
  5. Step 5: Solve for x
    x = 354,547,781,830.59/682,410.67
  6. Step 6: Final answer
    x = 519,551.93

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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.