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Finding the Fourth Proportional to 452,370.13, 677,521.62 and 215,878.90

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Solution

The fourth proportional to 452,370.13, 677,521.62 and 215,878.90 is: 323,325.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,370.13 : 677,521.62 = 215,878.90 : x
  2. Step 2: Convert to fraction form
    452,370.13/677,521.62 = 215,878.90/x
  3. Step 3: Cross multiply
    452,370.13x = 677,521.62 × 215,878.90
  4. Step 4: Simplify right side
    452,370.13x = 146,262,622,051.82
  5. Step 5: Solve for x
    x = 146,262,622,051.82/452,370.13
  6. Step 6: Final answer
    x = 323,325.11

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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.