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Finding the Fourth Proportional to 873,005.10, 1,310,491.80 and 674,206.80

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Solution

The fourth proportional to 873,005.10, 1,310,491.80 and 674,206.80 is: 1,012,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,005.10 : 1,310,491.80 = 674,206.80 : x
  2. Step 2: Convert to fraction form
    873,005.10/1,310,491.80 = 674,206.80/x
  3. Step 3: Cross multiply
    873,005.10x = 1,310,491.80 × 674,206.80
  4. Step 4: Simplify right side
    873,005.10x = 883,542,482,904.24
  5. Step 5: Solve for x
    x = 883,542,482,904.24/873,005.10
  6. Step 6: Final answer
    x = 1,012,070.24

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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.