Home / 515,852.12-773,787.42-178,904.67

Finding the Fourth Proportional to 515,852.12, 773,787.42 and 178,904.67

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Solution

The fourth proportional to 515,852.12, 773,787.42 and 178,904.67 is: 268,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,852.12 : 773,787.42 = 178,904.67 : x
  2. Step 2: Convert to fraction form
    515,852.12/773,787.42 = 178,904.67/x
  3. Step 3: Cross multiply
    515,852.12x = 773,787.42 × 178,904.67
  4. Step 4: Simplify right side
    515,852.12x = 138,434,183,025.25
  5. Step 5: Solve for x
    x = 138,434,183,025.25/515,852.12
  6. Step 6: Final answer
    x = 268,360.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.