Home / 722,705.40-1,084,058.10-484,759.80

Finding the Fourth Proportional to 722,705.40, 1,084,058.10 and 484,759.80

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Solution

The fourth proportional to 722,705.40, 1,084,058.10 and 484,759.80 is: 727,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,705.40 : 1,084,058.10 = 484,759.80 : x
  2. Step 2: Convert to fraction form
    722,705.40/1,084,058.10 = 484,759.80/x
  3. Step 3: Cross multiply
    722,705.40x = 1,084,058.10 × 484,759.80
  4. Step 4: Simplify right side
    722,705.40x = 525,507,787,744.38
  5. Step 5: Solve for x
    x = 525,507,787,744.38/722,705.40
  6. Step 6: Final answer
    x = 727,139.70

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Double scale
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Similar ratio
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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.