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Finding the Fourth Proportional to 1,365,618.60, 1,908,323.10 and 1,365,618.60

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Solution

The fourth proportional to 1,365,618.60, 1,908,323.10 and 1,365,618.60 is: 1,908,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,365,618.60 : 1,908,323.10 = 1,365,618.60 : x
  2. Step 2: Convert to fraction form
    1,365,618.60/1,908,323.10 = 1,365,618.60/x
  3. Step 3: Cross multiply
    1,365,618.60x = 1,908,323.10 × 1,365,618.60
  4. Step 4: Simplify right side
    1,365,618.60x = 2,606,041,520,169.66
  5. Step 5: Solve for x
    x = 2,606,041,520,169.66/1,365,618.60
  6. Step 6: Final answer
    x = 1,908,323.10

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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.