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Finding the Fourth Proportional to 1,661,002.90, 2,326,978.70 and 1,661,002.90

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Solution

The fourth proportional to 1,661,002.90, 2,326,978.70 and 1,661,002.90 is: 2,326,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,661,002.90 : 2,326,978.70 = 1,661,002.90 : x
  2. Step 2: Convert to fraction form
    1,661,002.90/2,326,978.70 = 1,661,002.90/x
  3. Step 3: Cross multiply
    1,661,002.90x = 2,326,978.70 × 1,661,002.90
  4. Step 4: Simplify right side
    1,661,002.90x = 3,865,118,368,938.23
  5. Step 5: Solve for x
    x = 3,865,118,368,938.23/1,661,002.90
  6. Step 6: Final answer
    x = 2,326,978.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.