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Finding the Fourth Proportional to 587,645.40, 881,468.10 and 401,021.40

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Solution

The fourth proportional to 587,645.40, 881,468.10 and 401,021.40 is: 601,532.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,645.40 : 881,468.10 = 401,021.40 : x
  2. Step 2: Convert to fraction form
    587,645.40/881,468.10 = 401,021.40/x
  3. Step 3: Cross multiply
    587,645.40x = 881,468.10 × 401,021.40
  4. Step 4: Simplify right side
    587,645.40x = 353,487,571,517.34
  5. Step 5: Solve for x
    x = 353,487,571,517.34/587,645.40
  6. Step 6: Final answer
    x = 601,532.10

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Similar ratio
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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.