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Finding the Fourth Proportional to 770,810.70, 1,156,216.05 and 713,073.90

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Solution

The fourth proportional to 770,810.70, 1,156,216.05 and 713,073.90 is: 1,069,610.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,810.70 : 1,156,216.05 = 713,073.90 : x
  2. Step 2: Convert to fraction form
    770,810.70/1,156,216.05 = 713,073.90/x
  3. Step 3: Cross multiply
    770,810.70x = 1,156,216.05 × 713,073.90
  4. Step 4: Simplify right side
    770,810.70x = 824,467,488,016.10
  5. Step 5: Solve for x
    x = 824,467,488,016.10/770,810.70
  6. Step 6: Final answer
    x = 1,069,610.85

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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.