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Finding the Third Proportional to 398,484,867.75 and 625,048,536.75

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Solution

The third proportional to 398,484,867.75 and 625,048,536.75 is: 980,427,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,484,867.75 : 625,048,536.75 = 625,048,536.75 : x
  2. Step 2: Convert to fraction form
    398,484,867.75/625,048,536.75 = 625,048,536.75/x
  3. Step 3: Cross multiply
    398,484,867.75x = 625,048,536.75 × 625,048,536.75
  4. Step 4: Simplify right side
    398,484,867.75x = 390,685,673,293,316,096
  5. Step 5: Solve for x
    x = 390,685,673,293,316,096/398,484,867.75
  6. Step 6: Final answer
    x = 980,427,877.98

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These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.