Home / 384,747.14-577,120.85-100,436.88

Finding the Fourth Proportional to 384,747.14, 577,120.85 and 100,436.88

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Solution

The fourth proportional to 384,747.14, 577,120.85 and 100,436.88 is: 150,655.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,747.14 : 577,120.85 = 100,436.88 : x
  2. Step 2: Convert to fraction form
    384,747.14/577,120.85 = 100,436.88/x
  3. Step 3: Cross multiply
    384,747.14x = 577,120.85 × 100,436.88
  4. Step 4: Simplify right side
    384,747.14x = 57,964,217,054.76
  5. Step 5: Solve for x
    x = 57,964,217,054.76/384,747.14
  6. Step 6: Final answer
    x = 150,655.36

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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.