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Finding the Fourth Proportional to 1,135,416, 1,703,124 and 636,818.88

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Solution

The fourth proportional to 1,135,416, 1,703,124 and 636,818.88 is: 955,228.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,416 : 1,703,124 = 636,818.88 : x
  2. Step 2: Convert to fraction form
    1,135,416/1,703,124 = 636,818.88/x
  3. Step 3: Cross multiply
    1,135,416x = 1,703,124 × 636,818.88
  4. Step 4: Simplify right side
    1,135,416x = 1,084,581,518,181.12
  5. Step 5: Solve for x
    x = 1,084,581,518,181.12/1,135,416
  6. Step 6: Final answer
    x = 955,228.32

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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.