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Finding the Fourth Proportional to 1,979,360.61, 2,956,759.88 and 1,435,297.89

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Solution

The fourth proportional to 1,979,360.61, 2,956,759.88 and 1,435,297.89 is: 2,144,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,360.61 : 2,956,759.88 = 1,435,297.89 : x
  2. Step 2: Convert to fraction form
    1,979,360.61/2,956,759.88 = 1,435,297.89/x
  3. Step 3: Cross multiply
    1,979,360.61x = 2,956,759.88 × 1,435,297.89
  4. Step 4: Simplify right side
    1,979,360.61x = 4,243,831,217,000.65
  5. Step 5: Solve for x
    x = 4,243,831,217,000.65/1,979,360.61
  6. Step 6: Final answer
    x = 2,144,041.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.