Home / 528,077.40-792,893.70-409,882.20

Finding the Fourth Proportional to 528,077.40, 792,893.70 and 409,882.20

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Solution

The fourth proportional to 528,077.40, 792,893.70 and 409,882.20 is: 615,426.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,077.40 : 792,893.70 = 409,882.20 : x
  2. Step 2: Convert to fraction form
    528,077.40/792,893.70 = 409,882.20/x
  3. Step 3: Cross multiply
    528,077.40x = 792,893.70 × 409,882.20
  4. Step 4: Simplify right side
    528,077.40x = 324,993,014,122.14
  5. Step 5: Solve for x
    x = 324,993,014,122.14/528,077.40
  6. Step 6: Final answer
    x = 615,426.86

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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.