Home / 639,117.04-958,675.56-218,396.56

Finding the Fourth Proportional to 639,117.04, 958,675.56 and 218,396.56

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Solution

The fourth proportional to 639,117.04, 958,675.56 and 218,396.56 is: 327,594.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,117.04 : 958,675.56 = 218,396.56 : x
  2. Step 2: Convert to fraction form
    639,117.04/958,675.56 = 218,396.56/x
  3. Step 3: Cross multiply
    639,117.04x = 958,675.56 × 218,396.56
  4. Step 4: Simplify right side
    639,117.04x = 209,371,444,460.07
  5. Step 5: Solve for x
    x = 209,371,444,460.07/639,117.04
  6. Step 6: Final answer
    x = 327,594.84

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Double scale
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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.