Home / 413,134.20-619,701.30-385,140.60

Finding the Fourth Proportional to 413,134.20, 619,701.30 and 385,140.60

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Solution

The fourth proportional to 413,134.20, 619,701.30 and 385,140.60 is: 577,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,134.20 : 619,701.30 = 385,140.60 : x
  2. Step 2: Convert to fraction form
    413,134.20/619,701.30 = 385,140.60/x
  3. Step 3: Cross multiply
    413,134.20x = 619,701.30 × 385,140.60
  4. Step 4: Simplify right side
    413,134.20x = 238,672,130,502.78
  5. Step 5: Solve for x
    x = 238,672,130,502.78/413,134.20
  6. Step 6: Final answer
    x = 577,710.90

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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.