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Finding the Fourth Proportional to 1,974,179.52, 2,956,773.12 and 1,545,038.40

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Solution

The fourth proportional to 1,974,179.52, 2,956,773.12 and 1,545,038.40 is: 2,314,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,179.52 : 2,956,773.12 = 1,545,038.40 : x
  2. Step 2: Convert to fraction form
    1,974,179.52/2,956,773.12 = 1,545,038.40/x
  3. Step 3: Cross multiply
    1,974,179.52x = 2,956,773.12 × 1,545,038.40
  4. Step 4: Simplify right side
    1,974,179.52x = 4,568,328,010,487.81
  5. Step 5: Solve for x
    x = 4,568,328,010,487.81/1,974,179.52
  6. Step 6: Final answer
    x = 2,314,038.80

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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.