Home / 668,567,945.70-1,002,851,918.55-515,512,937.70

Finding the Fourth Proportional to 668,567,945.70, 1,002,851,918.55 and 515,512,937.70

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Solution

The fourth proportional to 668,567,945.70, 1,002,851,918.55 and 515,512,937.70 is: 773,269,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,567,945.70 : 1,002,851,918.55 = 515,512,937.70 : x
  2. Step 2: Convert to fraction form
    668,567,945.70/1,002,851,918.55 = 515,512,937.70/x
  3. Step 3: Cross multiply
    668,567,945.70x = 1,002,851,918.55 × 515,512,937.70
  4. Step 4: Simplify right side
    668,567,945.70x = 516,983,138,609,791,616
  5. Step 5: Solve for x
    x = 516,983,138,609,791,616/668,567,945.70
  6. Step 6: Final answer
    x = 773,269,406.55

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Double scale
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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.