Home / 685,184.91-945,531.06-379,261.88

Finding the Fourth Proportional to 685,184.91, 945,531.06 and 379,261.88

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Solution

The fourth proportional to 685,184.91, 945,531.06 and 379,261.88 is: 523,368.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,184.91 : 945,531.06 = 379,261.88 : x
  2. Step 2: Convert to fraction form
    685,184.91/945,531.06 = 379,261.88/x
  3. Step 3: Cross multiply
    685,184.91x = 945,531.06 × 379,261.88
  4. Step 4: Simplify right side
    685,184.91x = 358,603,884,809.85
  5. Step 5: Solve for x
    x = 358,603,884,809.85/685,184.91
  6. Step 6: Final answer
    x = 523,368.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.