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Finding the Third Proportional to 258,235,866 and 553,312,422

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Solution

The third proportional to 258,235,866 and 553,312,422 is: 1,185,562,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,235,866 : 553,312,422 = 553,312,422 : x
  2. Step 2: Convert to fraction form
    258,235,866/553,312,422 = 553,312,422/x
  3. Step 3: Cross multiply
    258,235,866x = 553,312,422 × 553,312,422
  4. Step 4: Simplify right side
    258,235,866x = 306,154,636,339,506,112
  5. Step 5: Solve for x
    x = 306,154,636,339,506,112/258,235,866
  6. Step 6: Final answer
    x = 1,185,562,025.45

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.