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Finding the Fourth Proportional to 654,655.20, 979,909.20 and 468,031.20

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Solution

The fourth proportional to 654,655.20, 979,909.20 and 468,031.20 is: 700,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,655.20 : 979,909.20 = 468,031.20 : x
  2. Step 2: Convert to fraction form
    654,655.20/979,909.20 = 468,031.20/x
  3. Step 3: Cross multiply
    654,655.20x = 979,909.20 × 468,031.20
  4. Step 4: Simplify right side
    654,655.20x = 458,628,078,767.04
  5. Step 5: Solve for x
    x = 458,628,078,767.04/654,655.20
  6. Step 6: Final answer
    x = 700,564.33

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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.