Home / 626,619.51-938,310.50-432,471.80

Finding the Fourth Proportional to 626,619.51, 938,310.50 and 432,471.80

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Solution

The fourth proportional to 626,619.51, 938,310.50 and 432,471.80 is: 647,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,619.51 : 938,310.50 = 432,471.80 : x
  2. Step 2: Convert to fraction form
    626,619.51/938,310.50 = 432,471.80/x
  3. Step 3: Cross multiply
    626,619.51x = 938,310.50 × 432,471.80
  4. Step 4: Simplify right side
    626,619.51x = 405,792,830,893.90
  5. Step 5: Solve for x
    x = 405,792,830,893.90/626,619.51
  6. Step 6: Final answer
    x = 647,590.48

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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.