Home / 720,841,362,561.80-994,761,816,528.80-391,244,468,674.55

Finding the Fourth Proportional to 720,841,362,561.80, 994,761,816,528.80 and 391,244,468,674.55

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Solution

The fourth proportional to 720,841,362,561.80, 994,761,816,528.80 and 391,244,468,674.55 is: 539,917,766,347.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,841,362,561.80 : 994,761,816,528.80 = 391,244,468,674.55 : x
  2. Step 2: Convert to fraction form
    720,841,362,561.80/994,761,816,528.80 = 391,244,468,674.55/x
  3. Step 3: Cross multiply
    720,841,362,561.80x = 994,761,816,528.80 × 391,244,468,674.55
  4. Step 4: Simplify right side
    720,841,362,561.80x = 389,195,058,365,540,585,177,088
  5. Step 5: Solve for x
    x = 389,195,058,365,540,585,177,088/720,841,362,561.80
  6. Step 6: Final answer
    x = 539,917,766,347.90

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Double scale
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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.