Home / 651,921,245.60-977,881,868.40-393,003,190.40

Finding the Fourth Proportional to 651,921,245.60, 977,881,868.40 and 393,003,190.40

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Solution

The fourth proportional to 651,921,245.60, 977,881,868.40 and 393,003,190.40 is: 589,504,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,921,245.60 : 977,881,868.40 = 393,003,190.40 : x
  2. Step 2: Convert to fraction form
    651,921,245.60/977,881,868.40 = 393,003,190.40/x
  3. Step 3: Cross multiply
    651,921,245.60x = 977,881,868.40 × 393,003,190.40
  4. Step 4: Simplify right side
    651,921,245.60x = 384,310,694,115,512,896
  5. Step 5: Solve for x
    x = 384,310,694,115,512,896/651,921,245.60
  6. Step 6: Final answer
    x = 589,504,785.60

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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.