Home / 956,672,814.39-1,320,208,473.56-516,639,666.39

Finding the Fourth Proportional to 956,672,814.39, 1,320,208,473.56 and 516,639,666.39

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Solution

The fourth proportional to 956,672,814.39, 1,320,208,473.56 and 516,639,666.39 is: 712,962,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,672,814.39 : 1,320,208,473.56 = 516,639,666.39 : x
  2. Step 2: Convert to fraction form
    956,672,814.39/1,320,208,473.56 = 516,639,666.39/x
  3. Step 3: Cross multiply
    956,672,814.39x = 1,320,208,473.56 × 516,639,666.39
  4. Step 4: Simplify right side
    956,672,814.39x = 682,072,065,342,706,304
  5. Step 5: Solve for x
    x = 682,072,065,342,706,304/956,672,814.39
  6. Step 6: Final answer
    x = 712,962,734.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.