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Finding the Fourth Proportional to 393,951.90, 590,927.85 and 370,623.90

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Solution

The fourth proportional to 393,951.90, 590,927.85 and 370,623.90 is: 555,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,951.90 : 590,927.85 = 370,623.90 : x
  2. Step 2: Convert to fraction form
    393,951.90/590,927.85 = 370,623.90/x
  3. Step 3: Cross multiply
    393,951.90x = 590,927.85 × 370,623.90
  4. Step 4: Simplify right side
    393,951.90x = 219,011,984,385.62
  5. Step 5: Solve for x
    x = 219,011,984,385.62/393,951.90
  6. Step 6: Final answer
    x = 555,935.85

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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.