Home / 879,025.92-1,212,645.90-569,028.78

Finding the Fourth Proportional to 879,025.92, 1,212,645.90 and 569,028.78

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Solution

The fourth proportional to 879,025.92, 1,212,645.90 and 569,028.78 is: 784,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,025.92 : 1,212,645.90 = 569,028.78 : x
  2. Step 2: Convert to fraction form
    879,025.92/1,212,645.90 = 569,028.78/x
  3. Step 3: Cross multiply
    879,025.92x = 1,212,645.90 × 569,028.78
  4. Step 4: Simplify right side
    879,025.92x = 690,030,417,049.00
  5. Step 5: Solve for x
    x = 690,030,417,049.00/879,025.92
  6. Step 6: Final answer
    x = 784,994.39

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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.