Home / 413,192.40-619,788.60-346,270.20

Finding the Fourth Proportional to 413,192.40, 619,788.60 and 346,270.20

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Solution

The fourth proportional to 413,192.40, 619,788.60 and 346,270.20 is: 519,405.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,192.40 : 619,788.60 = 346,270.20 : x
  2. Step 2: Convert to fraction form
    413,192.40/619,788.60 = 346,270.20/x
  3. Step 3: Cross multiply
    413,192.40x = 619,788.60 × 346,270.20
  4. Step 4: Simplify right side
    413,192.40x = 214,614,322,479.72
  5. Step 5: Solve for x
    x = 214,614,322,479.72/413,192.40
  6. Step 6: Final answer
    x = 519,405.30

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Similar ratio
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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.