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Finding the Fourth Proportional to 713,376.80, 1,070,113.80 and 227,020.40

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Solution

The fourth proportional to 713,376.80, 1,070,113.80 and 227,020.40 is: 340,546.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,376.80 : 1,070,113.80 = 227,020.40 : x
  2. Step 2: Convert to fraction form
    713,376.80/1,070,113.80 = 227,020.40/x
  3. Step 3: Cross multiply
    713,376.80x = 1,070,113.80 × 227,020.40
  4. Step 4: Simplify right side
    713,376.80x = 242,937,662,921.52
  5. Step 5: Solve for x
    x = 242,937,662,921.52/713,376.80
  6. Step 6: Final answer
    x = 340,546.07

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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.