Home / 572,318,419.20-858,477,628.80-480,485,414.40

Finding the Fourth Proportional to 572,318,419.20, 858,477,628.80 and 480,485,414.40

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Solution

The fourth proportional to 572,318,419.20, 858,477,628.80 and 480,485,414.40 is: 720,728,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,318,419.20 : 858,477,628.80 = 480,485,414.40 : x
  2. Step 2: Convert to fraction form
    572,318,419.20/858,477,628.80 = 480,485,414.40/x
  3. Step 3: Cross multiply
    572,318,419.20x = 858,477,628.80 × 480,485,414.40
  4. Step 4: Simplify right side
    572,318,419.20x = 412,485,979,227,097,344
  5. Step 5: Solve for x
    x = 412,485,979,227,097,344/572,318,419.20
  6. Step 6: Final answer
    x = 720,728,121.60

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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.