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Finding the Fourth Proportional to 892,300.76, 1,233,797.10 and 877,878.98

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Solution

The fourth proportional to 892,300.76, 1,233,797.10 and 877,878.98 is: 1,213,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,300.76 : 1,233,797.10 = 877,878.98 : x
  2. Step 2: Convert to fraction form
    892,300.76/1,233,797.10 = 877,878.98/x
  3. Step 3: Cross multiply
    892,300.76x = 1,233,797.10 × 877,878.98
  4. Step 4: Simplify right side
    892,300.76x = 1,083,124,539,674.96
  5. Step 5: Solve for x
    x = 1,083,124,539,674.96/892,300.76
  6. Step 6: Final answer
    x = 1,213,855.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.