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Finding the Fourth Proportional to 881,628.10, 1,320,368.55 and 881,628.10

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Solution

The fourth proportional to 881,628.10, 1,320,368.55 and 881,628.10 is: 1,320,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,628.10 : 1,320,368.55 = 881,628.10 : x
  2. Step 2: Convert to fraction form
    881,628.10/1,320,368.55 = 881,628.10/x
  3. Step 3: Cross multiply
    881,628.10x = 1,320,368.55 × 881,628.10
  4. Step 4: Simplify right side
    881,628.10x = 1,164,074,016,036.26
  5. Step 5: Solve for x
    x = 1,164,074,016,036.26/881,628.10
  6. Step 6: Final answer
    x = 1,320,368.55

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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.