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Finding the Fourth Proportional to 3,853,360,390.80, 5,405,588,458.80 and 3,853,360,390.80

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Solution

The fourth proportional to 3,853,360,390.80, 5,405,588,458.80 and 3,853,360,390.80 is: 5,405,588,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,853,360,390.80 : 5,405,588,458.80 = 3,853,360,390.80 : x
  2. Step 2: Convert to fraction form
    3,853,360,390.80/5,405,588,458.80 = 3,853,360,390.80/x
  3. Step 3: Cross multiply
    3,853,360,390.80x = 5,405,588,458.80 × 3,853,360,390.80
  4. Step 4: Simplify right side
    3,853,360,390.80x = 20,829,680,456,105,537,536
  5. Step 5: Solve for x
    x = 20,829,680,456,105,537,536/3,853,360,390.80
  6. Step 6: Final answer
    x = 5,405,588,458.80

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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.