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Finding the Fourth Proportional to 412,800.30, 619,200.45 and 369,497.70

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Solution

The fourth proportional to 412,800.30, 619,200.45 and 369,497.70 is: 554,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,800.30 : 619,200.45 = 369,497.70 : x
  2. Step 2: Convert to fraction form
    412,800.30/619,200.45 = 369,497.70/x
  3. Step 3: Cross multiply
    412,800.30x = 619,200.45 × 369,497.70
  4. Step 4: Simplify right side
    412,800.30x = 228,793,142,113.97
  5. Step 5: Solve for x
    x = 228,793,142,113.97/412,800.30
  6. Step 6: Final answer
    x = 554,246.55

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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.