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Finding the Fourth Proportional to 713,604.10, 1,070,406.15 and 702,544.90

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Solution

The fourth proportional to 713,604.10, 1,070,406.15 and 702,544.90 is: 1,053,817.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,604.10 : 1,070,406.15 = 702,544.90 : x
  2. Step 2: Convert to fraction form
    713,604.10/1,070,406.15 = 702,544.90/x
  3. Step 3: Cross multiply
    713,604.10x = 1,070,406.15 × 702,544.90
  4. Step 4: Simplify right side
    713,604.10x = 752,008,381,611.14
  5. Step 5: Solve for x
    x = 752,008,381,611.14/713,604.10
  6. Step 6: Final answer
    x = 1,053,817.35

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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.