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Finding the Fourth Proportional to 363,910.70, 545,671.65 and 127,261.10

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Solution

The fourth proportional to 363,910.70, 545,671.65 and 127,261.10 is: 190,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,910.70 : 545,671.65 = 127,261.10 : x
  2. Step 2: Convert to fraction form
    363,910.70/545,671.65 = 127,261.10/x
  3. Step 3: Cross multiply
    363,910.70x = 545,671.65 × 127,261.10
  4. Step 4: Simplify right side
    363,910.70x = 69,442,774,417.82
  5. Step 5: Solve for x
    x = 69,442,774,417.82/363,910.70
  6. Step 6: Final answer
    x = 190,823.67

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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.