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Finding the Fourth Proportional to 926,868.90, 1,299,482.70 and 926,868.90

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Solution

The fourth proportional to 926,868.90, 1,299,482.70 and 926,868.90 is: 1,299,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,868.90 : 1,299,482.70 = 926,868.90 : x
  2. Step 2: Convert to fraction form
    926,868.90/1,299,482.70 = 926,868.90/x
  3. Step 3: Cross multiply
    926,868.90x = 1,299,482.70 × 926,868.90
  4. Step 4: Simplify right side
    926,868.90x = 1,204,450,100,718.03
  5. Step 5: Solve for x
    x = 1,204,450,100,718.03/926,868.90
  6. Step 6: Final answer
    x = 1,299,482.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.