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Finding the Fourth Proportional to 376,752.10, 565,565.55 and 216,955.30

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Solution

The fourth proportional to 376,752.10, 565,565.55 and 216,955.30 is: 325,684.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,752.10 : 565,565.55 = 216,955.30 : x
  2. Step 2: Convert to fraction form
    376,752.10/565,565.55 = 216,955.30/x
  3. Step 3: Cross multiply
    376,752.10x = 565,565.55 × 216,955.30
  4. Step 4: Simplify right side
    376,752.10x = 122,702,443,569.92
  5. Step 5: Solve for x
    x = 122,702,443,569.92/376,752.10
  6. Step 6: Final answer
    x = 325,684.83

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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.