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Finding the Fourth Proportional to 886,314.16, 1,329,473.40 and 353,878.48

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Solution

The fourth proportional to 886,314.16, 1,329,473.40 and 353,878.48 is: 530,818.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,314.16 : 1,329,473.40 = 353,878.48 : x
  2. Step 2: Convert to fraction form
    886,314.16/1,329,473.40 = 353,878.48/x
  3. Step 3: Cross multiply
    886,314.16x = 1,329,473.40 × 353,878.48
  4. Step 4: Simplify right side
    886,314.16x = 470,472,025,992.43
  5. Step 5: Solve for x
    x = 470,472,025,992.43/886,314.16
  6. Step 6: Final answer
    x = 530,818.58

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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.