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Finding the Fourth Proportional to 393,573.20, 590,359.80 and 156,952.40

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Solution

The fourth proportional to 393,573.20, 590,359.80 and 156,952.40 is: 235,428.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,573.20 : 590,359.80 = 156,952.40 : x
  2. Step 2: Convert to fraction form
    393,573.20/590,359.80 = 156,952.40/x
  3. Step 3: Cross multiply
    393,573.20x = 590,359.80 × 156,952.40
  4. Step 4: Simplify right side
    393,573.20x = 92,658,387,473.52
  5. Step 5: Solve for x
    x = 92,658,387,473.52/393,573.20
  6. Step 6: Final answer
    x = 235,428.60

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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.