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Finding the Fourth Proportional to 1,936,715.40, 2,901,573.90 and 1,656,779.40

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Solution

The fourth proportional to 1,936,715.40, 2,901,573.90 and 1,656,779.40 is: 2,482,175.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,936,715.40 : 2,901,573.90 = 1,656,779.40 : x
  2. Step 2: Convert to fraction form
    1,936,715.40/2,901,573.90 = 1,656,779.40/x
  3. Step 3: Cross multiply
    1,936,715.40x = 2,901,573.90 × 1,656,779.40
  4. Step 4: Simplify right side
    1,936,715.40x = 4,807,267,865,097.66
  5. Step 5: Solve for x
    x = 4,807,267,865,097.66/1,936,715.40
  6. Step 6: Final answer
    x = 2,482,175.68

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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.