Home / 345,304.36-517,393.38-211,902.83

Finding the Fourth Proportional to 345,304.36, 517,393.38 and 211,902.83

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Solution

The fourth proportional to 345,304.36, 517,393.38 and 211,902.83 is: 317,508.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,304.36 : 517,393.38 = 211,902.83 : x
  2. Step 2: Convert to fraction form
    345,304.36/517,393.38 = 211,902.83/x
  3. Step 3: Cross multiply
    345,304.36x = 517,393.38 × 211,902.83
  4. Step 4: Simplify right side
    345,304.36x = 109,637,118,858.30
  5. Step 5: Solve for x
    x = 109,637,118,858.30/345,304.36
  6. Step 6: Final answer
    x = 317,508.65

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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.