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Finding the Fourth Proportional to 369,793.80, 554,690.70 and 355,278.60

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Solution

The fourth proportional to 369,793.80, 554,690.70 and 355,278.60 is: 532,917.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,793.80 : 554,690.70 = 355,278.60 : x
  2. Step 2: Convert to fraction form
    369,793.80/554,690.70 = 355,278.60/x
  3. Step 3: Cross multiply
    369,793.80x = 554,690.70 × 355,278.60
  4. Step 4: Simplify right side
    369,793.80x = 197,069,735,329.02
  5. Step 5: Solve for x
    x = 197,069,735,329.02/369,793.80
  6. Step 6: Final answer
    x = 532,917.90

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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.