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Finding the Fourth Proportional to 1,660,878.60, 2,487,381.30 and 1,660,878.60

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Solution

The fourth proportional to 1,660,878.60, 2,487,381.30 and 1,660,878.60 is: 2,487,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,878.60 : 2,487,381.30 = 1,660,878.60 : x
  2. Step 2: Convert to fraction form
    1,660,878.60/2,487,381.30 = 1,660,878.60/x
  3. Step 3: Cross multiply
    1,660,878.60x = 2,487,381.30 × 1,660,878.60
  4. Step 4: Simplify right side
    1,660,878.60x = 4,131,238,371,210.18
  5. Step 5: Solve for x
    x = 4,131,238,371,210.18/1,660,878.60
  6. Step 6: Final answer
    x = 2,487,381.30

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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.