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Finding the Third Proportional to 979,020 and 2,075,490

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Solution

The third proportional to 979,020 and 2,075,490 is: 4,399,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,020 : 2,075,490 = 2,075,490 : x
  2. Step 2: Convert to fraction form
    979,020/2,075,490 = 2,075,490/x
  3. Step 3: Cross multiply
    979,020x = 2,075,490 × 2,075,490
  4. Step 4: Simplify right side
    979,020x = 4,307,658,740,100
  5. Step 5: Solve for x
    x = 4,307,658,740,100/979,020
  6. Step 6: Final answer
    x = 4,399,970.11

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.