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Finding the Fourth Proportional to 692,132.88, 955,077 and 420,349.52

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Solution

The fourth proportional to 692,132.88, 955,077 and 420,349.52 is: 580,042.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,132.88 : 955,077 = 420,349.52 : x
  2. Step 2: Convert to fraction form
    692,132.88/955,077 = 420,349.52/x
  3. Step 3: Cross multiply
    692,132.88x = 955,077 × 420,349.52
  4. Step 4: Simplify right side
    692,132.88x = 401,466,158,513.04
  5. Step 5: Solve for x
    x = 401,466,158,513.04/692,132.88
  6. Step 6: Final answer
    x = 580,042.03

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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.