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Finding the Fourth Proportional to 722,847.50, 997,535.40 and 400,562.97

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Solution

The fourth proportional to 722,847.50, 997,535.40 and 400,562.97 is: 552,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,847.50 : 997,535.40 = 400,562.97 : x
  2. Step 2: Convert to fraction form
    722,847.50/997,535.40 = 400,562.97/x
  3. Step 3: Cross multiply
    722,847.50x = 997,535.40 × 400,562.97
  4. Step 4: Simplify right side
    722,847.50x = 399,575,742,504.14
  5. Step 5: Solve for x
    x = 399,575,742,504.14/722,847.50
  6. Step 6: Final answer
    x = 552,780.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.