Home / 677,682.45-935,193.06-387,290.75

Finding the Fourth Proportional to 677,682.45, 935,193.06 and 387,290.75

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Solution

The fourth proportional to 677,682.45, 935,193.06 and 387,290.75 is: 534,456.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,682.45 : 935,193.06 = 387,290.75 : x
  2. Step 2: Convert to fraction form
    677,682.45/935,193.06 = 387,290.75/x
  3. Step 3: Cross multiply
    677,682.45x = 935,193.06 × 387,290.75
  4. Step 4: Simplify right side
    677,682.45x = 362,191,616,926.23
  5. Step 5: Solve for x
    x = 362,191,616,926.23/677,682.45
  6. Step 6: Final answer
    x = 534,456.24

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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.