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Finding the Fourth Proportional to 366,823.10, 550,234.65 and 260,534.90

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Solution

The fourth proportional to 366,823.10, 550,234.65 and 260,534.90 is: 390,802.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,823.10 : 550,234.65 = 260,534.90 : x
  2. Step 2: Convert to fraction form
    366,823.10/550,234.65 = 260,534.90/x
  3. Step 3: Cross multiply
    366,823.10x = 550,234.65 × 260,534.90
  4. Step 4: Simplify right side
    366,823.10x = 143,355,329,514.29
  5. Step 5: Solve for x
    x = 143,355,329,514.29/366,823.10
  6. Step 6: Final answer
    x = 390,802.35

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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.