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Finding the Fourth Proportional to 713,426.80, 1,070,188.80 and 227,070.40

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Solution

The fourth proportional to 713,426.80, 1,070,188.80 and 227,070.40 is: 340,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,426.80 : 1,070,188.80 = 227,070.40 : x
  2. Step 2: Convert to fraction form
    713,426.80/1,070,188.80 = 227,070.40/x
  3. Step 3: Cross multiply
    713,426.80x = 1,070,188.80 × 227,070.40
  4. Step 4: Simplify right side
    713,426.80x = 243,008,198,891.52
  5. Step 5: Solve for x
    x = 243,008,198,891.52/713,426.80
  6. Step 6: Final answer
    x = 340,621.07

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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.