Home / 519,827.40-780,000.30-295,360.20

Finding the Fourth Proportional to 519,827.40, 780,000.30 and 295,360.20

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Solution

The fourth proportional to 519,827.40, 780,000.30 and 295,360.20 is: 443,187.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,827.40 : 780,000.30 = 295,360.20 : x
  2. Step 2: Convert to fraction form
    519,827.40/780,000.30 = 295,360.20/x
  3. Step 3: Cross multiply
    519,827.40x = 780,000.30 × 295,360.20
  4. Step 4: Simplify right side
    519,827.40x = 230,381,044,608.06
  5. Step 5: Solve for x
    x = 230,381,044,608.06/519,827.40
  6. Step 6: Final answer
    x = 443,187.57

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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.