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Finding the Fourth Proportional to 382,355.40, 573,014.70 and 255,635.40

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Solution

The fourth proportional to 382,355.40, 573,014.70 and 255,635.40 is: 383,106.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,355.40 : 573,014.70 = 255,635.40 : x
  2. Step 2: Convert to fraction form
    382,355.40/573,014.70 = 255,635.40/x
  3. Step 3: Cross multiply
    382,355.40x = 573,014.70 × 255,635.40
  4. Step 4: Simplify right side
    382,355.40x = 146,482,842,040.38
  5. Step 5: Solve for x
    x = 146,482,842,040.38/382,355.40
  6. Step 6: Final answer
    x = 383,106.51

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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.