Home / 677,929.91-935,445.51-436,539.78

Finding the Fourth Proportional to 677,929.91, 935,445.51 and 436,539.78

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Solution

The fourth proportional to 677,929.91, 935,445.51 and 436,539.78 is: 602,361.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,929.91 : 935,445.51 = 436,539.78 : x
  2. Step 2: Convert to fraction form
    677,929.91/935,445.51 = 436,539.78/x
  3. Step 3: Cross multiply
    677,929.91x = 935,445.51 × 436,539.78
  4. Step 4: Simplify right side
    677,929.91x = 408,359,177,137.39
  5. Step 5: Solve for x
    x = 408,359,177,137.39/677,929.91
  6. Step 6: Final answer
    x = 602,361.95

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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.