Home / 519,025.60-778,538.40-186,635.20

Finding the Fourth Proportional to 519,025.60, 778,538.40 and 186,635.20

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Solution

The fourth proportional to 519,025.60, 778,538.40 and 186,635.20 is: 279,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,025.60 : 778,538.40 = 186,635.20 : x
  2. Step 2: Convert to fraction form
    519,025.60/778,538.40 = 186,635.20/x
  3. Step 3: Cross multiply
    519,025.60x = 778,538.40 × 186,635.20
  4. Step 4: Simplify right side
    519,025.60x = 145,302,669,991.68
  5. Step 5: Solve for x
    x = 145,302,669,991.68/519,025.60
  6. Step 6: Final answer
    x = 279,952.80

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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.