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Finding the Fourth Proportional to 869,376,081.40, 1,304,064,122.10 and 869,376,081.40

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Solution

The fourth proportional to 869,376,081.40, 1,304,064,122.10 and 869,376,081.40 is: 1,304,064,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,376,081.40 : 1,304,064,122.10 = 869,376,081.40 : x
  2. Step 2: Convert to fraction form
    869,376,081.40/1,304,064,122.10 = 869,376,081.40/x
  3. Step 3: Cross multiply
    869,376,081.40x = 1,304,064,122.10 × 869,376,081.40
  4. Step 4: Simplify right side
    869,376,081.40x = 1,133,722,156,365,629,056
  5. Step 5: Solve for x
    x = 1,133,722,156,365,629,056/869,376,081.40
  6. Step 6: Final answer
    x = 1,304,064,122.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.