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Finding the Fourth Proportional to 354,823.80, 532,235.70 and 347,825.40

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Solution

The fourth proportional to 354,823.80, 532,235.70 and 347,825.40 is: 521,738.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,823.80 : 532,235.70 = 347,825.40 : x
  2. Step 2: Convert to fraction form
    354,823.80/532,235.70 = 347,825.40/x
  3. Step 3: Cross multiply
    354,823.80x = 532,235.70 × 347,825.40
  4. Step 4: Simplify right side
    354,823.80x = 185,125,095,246.78
  5. Step 5: Solve for x
    x = 185,125,095,246.78/354,823.80
  6. Step 6: Final answer
    x = 521,738.10

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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.