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Finding the Fourth Proportional to 626,648.98, 861,450.39 and 539,114.32

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Solution

The fourth proportional to 626,648.98, 861,450.39 and 539,114.32 is: 741,117.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,648.98 : 861,450.39 = 539,114.32 : x
  2. Step 2: Convert to fraction form
    626,648.98/861,450.39 = 539,114.32/x
  3. Step 3: Cross multiply
    626,648.98x = 861,450.39 × 539,114.32
  4. Step 4: Simplify right side
    626,648.98x = 464,420,241,218.59
  5. Step 5: Solve for x
    x = 464,420,241,218.59/626,648.98
  6. Step 6: Final answer
    x = 741,117.05

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.