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Finding the Fourth Proportional to 895,416.45, 1,236,442.71 and 866,461.77

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Solution

The fourth proportional to 895,416.45, 1,236,442.71 and 866,461.77 is: 1,196,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,416.45 : 1,236,442.71 = 866,461.77 : x
  2. Step 2: Convert to fraction form
    895,416.45/1,236,442.71 = 866,461.77/x
  3. Step 3: Cross multiply
    895,416.45x = 1,236,442.71 × 866,461.77
  4. Step 4: Simplify right side
    895,416.45x = 1,071,330,339,010.20
  5. Step 5: Solve for x
    x = 1,071,330,339,010.20/895,416.45
  6. Step 6: Final answer
    x = 1,196,460.42

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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.