Home / 878,941,904.01-1,212,941,156.19-477,055,796.85

Finding the Fourth Proportional to 878,941,904.01, 1,212,941,156.19 and 477,055,796.85

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Solution

The fourth proportional to 878,941,904.01, 1,212,941,156.19 and 477,055,796.85 is: 658,337,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,941,904.01 : 1,212,941,156.19 = 477,055,796.85 : x
  2. Step 2: Convert to fraction form
    878,941,904.01/1,212,941,156.19 = 477,055,796.85/x
  3. Step 3: Cross multiply
    878,941,904.01x = 1,212,941,156.19 × 477,055,796.85
  4. Step 4: Simplify right side
    878,941,904.01x = 578,640,609,798,380,800
  5. Step 5: Solve for x
    x = 578,640,609,798,380,800/878,941,904.01
  6. Step 6: Final answer
    x = 658,337,720.80

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Double scale
Find fourth proportional to 878,941,905.01, 1,212,941,157.57 and 477,055,797.85
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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.