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Finding the Fourth Proportional to 526,125,619.20, 737,785,190.40 and 526,125,619.20

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Solution

The fourth proportional to 526,125,619.20, 737,785,190.40 and 526,125,619.20 is: 737,785,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,125,619.20 : 737,785,190.40 = 526,125,619.20 : x
  2. Step 2: Convert to fraction form
    526,125,619.20/737,785,190.40 = 526,125,619.20/x
  3. Step 3: Cross multiply
    526,125,619.20x = 737,785,190.40 × 526,125,619.20
  4. Step 4: Simplify right side
    526,125,619.20x = 388,167,690,135,789,888
  5. Step 5: Solve for x
    x = 388,167,690,135,789,888/526,125,619.20
  6. Step 6: Final answer
    x = 737,785,190.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.