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Finding the Third Proportional to 312,587,880 and 459,516,028

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Solution

The third proportional to 312,587,880 and 459,516,028 is: 675,505,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,587,880 : 459,516,028 = 459,516,028 : x
  2. Step 2: Convert to fraction form
    312,587,880/459,516,028 = 459,516,028/x
  3. Step 3: Cross multiply
    312,587,880x = 459,516,028 × 459,516,028
  4. Step 4: Simplify right side
    312,587,880x = 211,154,979,988,896,768
  5. Step 5: Solve for x
    x = 211,154,979,988,896,768/312,587,880
  6. Step 6: Final answer
    x = 675,505,972.88

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.