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Finding the Fourth Proportional to 483,947.60, 725,143.80 and 404,632.40

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Solution

The fourth proportional to 483,947.60, 725,143.80 and 404,632.40 is: 606,298.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,947.60 : 725,143.80 = 404,632.40 : x
  2. Step 2: Convert to fraction form
    483,947.60/725,143.80 = 404,632.40/x
  3. Step 3: Cross multiply
    483,947.60x = 725,143.80 × 404,632.40
  4. Step 4: Simplify right side
    483,947.60x = 293,416,676,139.12
  5. Step 5: Solve for x
    x = 293,416,676,139.12/483,947.60
  6. Step 6: Final answer
    x = 606,298.44

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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.