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Finding the Fourth Proportional to 713,960.80, 1,072,690.80 and 536,813.80

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Solution

The fourth proportional to 713,960.80, 1,072,690.80 and 536,813.80 is: 806,536.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,960.80 : 1,072,690.80 = 536,813.80 : x
  2. Step 2: Convert to fraction form
    713,960.80/1,072,690.80 = 536,813.80/x
  3. Step 3: Cross multiply
    713,960.80x = 1,072,690.80 × 536,813.80
  4. Step 4: Simplify right side
    713,960.80x = 575,835,224,573.04
  5. Step 5: Solve for x
    x = 575,835,224,573.04/713,960.80
  6. Step 6: Final answer
    x = 806,536.19

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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.