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Finding the Fourth Proportional to 376,032.25, 518,860.78 and 248,639.77

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Solution

The fourth proportional to 376,032.25, 518,860.78 and 248,639.77 is: 343,080.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,032.25 : 518,860.78 = 248,639.77 : x
  2. Step 2: Convert to fraction form
    376,032.25/518,860.78 = 248,639.77/x
  3. Step 3: Cross multiply
    376,032.25x = 518,860.78 × 248,639.77
  4. Step 4: Simplify right side
    376,032.25x = 129,009,425,001.22
  5. Step 5: Solve for x
    x = 129,009,425,001.22/376,032.25
  6. Step 6: Final answer
    x = 343,080.75

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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.