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Finding the Fourth Proportional to 626,534.89, 938,118.54 and 397,590.97

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Solution

The fourth proportional to 626,534.89, 938,118.54 and 397,590.97 is: 595,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,534.89 : 938,118.54 = 397,590.97 : x
  2. Step 2: Convert to fraction form
    626,534.89/938,118.54 = 397,590.97/x
  3. Step 3: Cross multiply
    626,534.89x = 938,118.54 × 397,590.97
  4. Step 4: Simplify right side
    626,534.89x = 372,987,460,293.58
  5. Step 5: Solve for x
    x = 372,987,460,293.58/626,534.89
  6. Step 6: Final answer
    x = 595,317.94

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1.5x scale

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.