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Finding the Third Proportional to 278,919,628.50 and 608,060,485.50

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Solution

The third proportional to 278,919,628.50 and 608,060,485.50 is: 1,325,606,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,919,628.50 : 608,060,485.50 = 608,060,485.50 : x
  2. Step 2: Convert to fraction form
    278,919,628.50/608,060,485.50 = 608,060,485.50/x
  3. Step 3: Cross multiply
    278,919,628.50x = 608,060,485.50 × 608,060,485.50
  4. Step 4: Simplify right side
    278,919,628.50x = 369,737,554,026,495,680
  5. Step 5: Solve for x
    x = 369,737,554,026,495,680/278,919,628.50
  6. Step 6: Final answer
    x = 1,325,606,075.18

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.