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Finding the Fourth Proportional to 545,934.90, 818,902.35 and 190,911.90

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Solution

The fourth proportional to 545,934.90, 818,902.35 and 190,911.90 is: 286,367.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,934.90 : 818,902.35 = 190,911.90 : x
  2. Step 2: Convert to fraction form
    545,934.90/818,902.35 = 190,911.90/x
  3. Step 3: Cross multiply
    545,934.90x = 818,902.35 × 190,911.90
  4. Step 4: Simplify right side
    545,934.90x = 156,338,203,552.97
  5. Step 5: Solve for x
    x = 156,338,203,552.97/545,934.90
  6. Step 6: Final answer
    x = 286,367.85

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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.