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Finding the Fourth Proportional to 1,973,731.60, 2,956,660.80 and 1,375,368.40

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Solution

The fourth proportional to 1,973,731.60, 2,956,660.80 and 1,375,368.40 is: 2,060,309.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973,731.60 : 2,956,660.80 = 1,375,368.40 : x
  2. Step 2: Convert to fraction form
    1,973,731.60/2,956,660.80 = 1,375,368.40/x
  3. Step 3: Cross multiply
    1,973,731.60x = 2,956,660.80 × 1,375,368.40
  4. Step 4: Simplify right side
    1,973,731.60x = 4,066,497,833,838.72
  5. Step 5: Solve for x
    x = 4,066,497,833,838.72/1,973,731.60
  6. Step 6: Final answer
    x = 2,060,309.43

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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.