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Finding the Fourth Proportional to 656,706.60, 985,089.42 and 201,264.48

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Solution

The fourth proportional to 656,706.60, 985,089.42 and 201,264.48 is: 301,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,706.60 : 985,089.42 = 201,264.48 : x
  2. Step 2: Convert to fraction form
    656,706.60/985,089.42 = 201,264.48/x
  3. Step 3: Cross multiply
    656,706.60x = 985,089.42 × 201,264.48
  4. Step 4: Simplify right side
    656,706.60x = 198,263,509,869.80
  5. Step 5: Solve for x
    x = 198,263,509,869.80/656,706.60
  6. Step 6: Final answer
    x = 301,905.77

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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.