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Finding the Fourth Proportional to 488,423.10, 732,634.65 and 368,672.70

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Solution

The fourth proportional to 488,423.10, 732,634.65 and 368,672.70 is: 553,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,423.10 : 732,634.65 = 368,672.70 : x
  2. Step 2: Convert to fraction form
    488,423.10/732,634.65 = 368,672.70/x
  3. Step 3: Cross multiply
    488,423.10x = 732,634.65 × 368,672.70
  4. Step 4: Simplify right side
    488,423.10x = 270,102,394,529.06
  5. Step 5: Solve for x
    x = 270,102,394,529.06/488,423.10
  6. Step 6: Final answer
    x = 553,009.05

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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.