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Finding the Fourth Proportional to 441,369.01, 661,217.90 and 260,914.17

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Solution

The fourth proportional to 441,369.01, 661,217.90 and 260,914.17 is: 390,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,369.01 : 661,217.90 = 260,914.17 : x
  2. Step 2: Convert to fraction form
    441,369.01/661,217.90 = 260,914.17/x
  3. Step 3: Cross multiply
    441,369.01x = 661,217.90 × 260,914.17
  4. Step 4: Simplify right side
    441,369.01x = 172,521,120,742.64
  5. Step 5: Solve for x
    x = 172,521,120,742.64/441,369.01
  6. Step 6: Final answer
    x = 390,877.28

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1.5x scale

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.