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Finding the Fourth Proportional to 1,191,611.98, 1,786,854.84 and 432,924.40

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Solution

The fourth proportional to 1,191,611.98, 1,786,854.84 and 432,924.40 is: 649,182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,611.98 : 1,786,854.84 = 432,924.40 : x
  2. Step 2: Convert to fraction form
    1,191,611.98/1,786,854.84 = 432,924.40/x
  3. Step 3: Cross multiply
    1,191,611.98x = 1,786,854.84 × 432,924.40
  4. Step 4: Simplify right side
    1,191,611.98x = 773,573,059,494.10
  5. Step 5: Solve for x
    x = 773,573,059,494.10/1,191,611.98
  6. Step 6: Final answer
    x = 649,182.01

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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.