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Finding the Fourth Proportional to 218,951.86, 302,038.84 and 190,206.98

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Solution

The fourth proportional to 218,951.86, 302,038.84 and 190,206.98 is: 262,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,951.86 : 302,038.84 = 190,206.98 : x
  2. Step 2: Convert to fraction form
    218,951.86/302,038.84 = 190,206.98/x
  3. Step 3: Cross multiply
    218,951.86x = 302,038.84 × 190,206.98
  4. Step 4: Simplify right side
    218,951.86x = 57,449,897,158.28
  5. Step 5: Solve for x
    x = 57,449,897,158.28/218,951.86
  6. Step 6: Final answer
    x = 262,385.98

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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.