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Finding the Fourth Proportional to 664,411.60, 996,455.40 and 191,047.60

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Solution

The fourth proportional to 664,411.60, 996,455.40 and 191,047.60 is: 286,524.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,411.60 : 996,455.40 = 191,047.60 : x
  2. Step 2: Convert to fraction form
    664,411.60/996,455.40 = 191,047.60/x
  3. Step 3: Cross multiply
    664,411.60x = 996,455.40 × 191,047.60
  4. Step 4: Simplify right side
    664,411.60x = 190,370,412,677.04
  5. Step 5: Solve for x
    x = 190,370,412,677.04/664,411.60
  6. Step 6: Final answer
    x = 286,524.82

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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.