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Finding the Fourth Proportional to 782,235.84, 1,173,165.84 and 361,107.12

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Solution

The fourth proportional to 782,235.84, 1,173,165.84 and 361,107.12 is: 541,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,235.84 : 1,173,165.84 = 361,107.12 : x
  2. Step 2: Convert to fraction form
    782,235.84/1,173,165.84 = 361,107.12/x
  3. Step 3: Cross multiply
    782,235.84x = 1,173,165.84 × 361,107.12
  4. Step 4: Simplify right side
    782,235.84x = 423,638,537,764.78
  5. Step 5: Solve for x
    x = 423,638,537,764.78/782,235.84
  6. Step 6: Final answer
    x = 541,573.93

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Double scale
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1.5x scale

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.