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Finding the Fourth Proportional to 1,168,874,975.85, 1,613,207,945.72 and 716,672,950.03

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Solution

The fourth proportional to 1,168,874,975.85, 1,613,207,945.72 and 716,672,950.03 is: 989,107,065.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,168,874,975.85 : 1,613,207,945.72 = 716,672,950.03 : x
  2. Step 2: Convert to fraction form
    1,168,874,975.85/1,613,207,945.72 = 716,672,950.03/x
  3. Step 3: Cross multiply
    1,168,874,975.85x = 1,613,207,945.72 × 716,672,950.03
  4. Step 4: Simplify right side
    1,168,874,975.85x = 1,156,142,497,459,339,008
  5. Step 5: Solve for x
    x = 1,156,142,497,459,339,008/1,168,874,975.85
  6. Step 6: Final answer
    x = 989,107,065.64

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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.