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Finding the Fourth Proportional to 1,890,718.42, 2,610,469.08 and 1,454,360.89

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Solution

The fourth proportional to 1,890,718.42, 2,610,469.08 and 1,454,360.89 is: 2,008,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,718.42 : 2,610,469.08 = 1,454,360.89 : x
  2. Step 2: Convert to fraction form
    1,890,718.42/2,610,469.08 = 1,454,360.89/x
  3. Step 3: Cross multiply
    1,890,718.42x = 2,610,469.08 × 1,454,360.89
  4. Step 4: Simplify right side
    1,890,718.42x = 3,796,564,134,506.28
  5. Step 5: Solve for x
    x = 3,796,564,134,506.28/1,890,718.42
  6. Step 6: Final answer
    x = 2,008,000.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.