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Finding the Fourth Proportional to 1,646,445.90, 2,310,000.90 and 1,646,445.90

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Solution

The fourth proportional to 1,646,445.90, 2,310,000.90 and 1,646,445.90 is: 2,310,000.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,445.90 : 2,310,000.90 = 1,646,445.90 : x
  2. Step 2: Convert to fraction form
    1,646,445.90/2,310,000.90 = 1,646,445.90/x
  3. Step 3: Cross multiply
    1,646,445.90x = 2,310,000.90 × 1,646,445.90
  4. Step 4: Simplify right side
    1,646,445.90x = 3,803,291,510,801.31
  5. Step 5: Solve for x
    x = 3,803,291,510,801.31/1,646,445.90
  6. Step 6: Final answer
    x = 2,310,000.90

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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.