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Finding the Fourth Proportional to 488,426.19, 732,048.78 and 251,639.70

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Solution

The fourth proportional to 488,426.19, 732,048.78 and 251,639.70 is: 377,155.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,426.19 : 732,048.78 = 251,639.70 : x
  2. Step 2: Convert to fraction form
    488,426.19/732,048.78 = 251,639.70/x
  3. Step 3: Cross multiply
    488,426.19x = 732,048.78 × 251,639.70
  4. Step 4: Simplify right side
    488,426.19x = 184,212,535,384.57
  5. Step 5: Solve for x
    x = 184,212,535,384.57/488,426.19
  6. Step 6: Final answer
    x = 377,155.32

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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.