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Finding the Fourth Proportional to 441,119.40, 661,679.10 and 283,655.40

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Solution

The fourth proportional to 441,119.40, 661,679.10 and 283,655.40 is: 425,483.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,119.40 : 661,679.10 = 283,655.40 : x
  2. Step 2: Convert to fraction form
    441,119.40/661,679.10 = 283,655.40/x
  3. Step 3: Cross multiply
    441,119.40x = 661,679.10 × 283,655.40
  4. Step 4: Simplify right side
    441,119.40x = 187,688,849,782.14
  5. Step 5: Solve for x
    x = 187,688,849,782.14/441,119.40
  6. Step 6: Final answer
    x = 425,483.10

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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.