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Finding the Fourth Proportional to 692,202.40, 955,443.60 and 405,784.48

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Solution

The fourth proportional to 692,202.40, 955,443.60 and 405,784.48 is: 560,102.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,202.40 : 955,443.60 = 405,784.48 : x
  2. Step 2: Convert to fraction form
    692,202.40/955,443.60 = 405,784.48/x
  3. Step 3: Cross multiply
    692,202.40x = 955,443.60 × 405,784.48
  4. Step 4: Simplify right side
    692,202.40x = 387,704,184,395.33
  5. Step 5: Solve for x
    x = 387,704,184,395.33/692,202.40
  6. Step 6: Final answer
    x = 560,102.34

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1.5x scale

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.