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Finding the Fourth Proportional to 895,677.36, 1,235,978.64 and 493,269.36

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Solution

The fourth proportional to 895,677.36, 1,235,978.64 and 493,269.36 is: 680,680.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    895,677.36 : 1,235,978.64 = 493,269.36 : x
  2. Step 2: Convert to fraction form
    895,677.36/1,235,978.64 = 493,269.36/x
  3. Step 3: Cross multiply
    895,677.36x = 1,235,978.64 × 493,269.36
  4. Step 4: Simplify right side
    895,677.36x = 609,670,392,726.47
  5. Step 5: Solve for x
    x = 609,670,392,726.47/895,677.36
  6. Step 6: Final answer
    x = 680,680.81

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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.