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Finding the Fourth Proportional to 1,583,677.80, 2,375,516.70 and 1,492,439.40

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Solution

The fourth proportional to 1,583,677.80, 2,375,516.70 and 1,492,439.40 is: 2,238,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,583,677.80 : 2,375,516.70 = 1,492,439.40 : x
  2. Step 2: Convert to fraction form
    1,583,677.80/2,375,516.70 = 1,492,439.40/x
  3. Step 3: Cross multiply
    1,583,677.80x = 2,375,516.70 × 1,492,439.40
  4. Step 4: Simplify right side
    1,583,677.80x = 3,545,314,718,437.98
  5. Step 5: Solve for x
    x = 3,545,314,718,437.98/1,583,677.80
  6. Step 6: Final answer
    x = 2,238,659.10

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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.