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Finding the Fourth Proportional to 663,166.04, 915,169.66 and 361,360.04

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Solution

The fourth proportional to 663,166.04, 915,169.66 and 361,360.04 is: 498,677.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,166.04 : 915,169.66 = 361,360.04 : x
  2. Step 2: Convert to fraction form
    663,166.04/915,169.66 = 361,360.04/x
  3. Step 3: Cross multiply
    663,166.04x = 915,169.66 × 361,360.04
  4. Step 4: Simplify right side
    663,166.04x = 330,705,739,465.14
  5. Step 5: Solve for x
    x = 330,705,739,465.14/663,166.04
  6. Step 6: Final answer
    x = 498,677.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.