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Finding the Third Proportional to 358,771,240.31 and 561,574,979.81

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Solution

The third proportional to 358,771,240.31 and 561,574,979.81 is: 879,018,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,771,240.31 : 561,574,979.81 = 561,574,979.81 : x
  2. Step 2: Convert to fraction form
    358,771,240.31/561,574,979.81 = 561,574,979.81/x
  3. Step 3: Cross multiply
    358,771,240.31x = 561,574,979.81 × 561,574,979.81
  4. Step 4: Simplify right side
    358,771,240.31x = 315,366,457,951,409,792
  5. Step 5: Solve for x
    x = 315,366,457,951,409,792/358,771,240.31
  6. Step 6: Final answer
    x = 879,018,222.52

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Why These Related Problems?

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