Home / 677,917.28-935,521.16-376,111.28

Finding the Fourth Proportional to 677,917.28, 935,521.16 and 376,111.28

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Solution

The fourth proportional to 677,917.28, 935,521.16 and 376,111.28 is: 519,030.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,917.28 : 935,521.16 = 376,111.28 : x
  2. Step 2: Convert to fraction form
    677,917.28/935,521.16 = 376,111.28/x
  3. Step 3: Cross multiply
    677,917.28x = 935,521.16 × 376,111.28
  4. Step 4: Simplify right side
    677,917.28x = 351,860,060,954.69
  5. Step 5: Solve for x
    x = 351,860,060,954.69/677,917.28
  6. Step 6: Final answer
    x = 519,030.97

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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.