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Finding the Fourth Proportional to 1,983,191.04, 2,974,326.48 and 971,303.40

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Solution

The fourth proportional to 1,983,191.04, 2,974,326.48 and 971,303.40 is: 1,456,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,983,191.04 : 2,974,326.48 = 971,303.40 : x
  2. Step 2: Convert to fraction form
    1,983,191.04/2,974,326.48 = 971,303.40/x
  3. Step 3: Cross multiply
    1,983,191.04x = 2,974,326.48 × 971,303.40
  4. Step 4: Simplify right side
    1,983,191.04x = 2,888,973,422,734.03
  5. Step 5: Solve for x
    x = 2,888,973,422,734.03/1,983,191.04
  6. Step 6: Final answer
    x = 1,456,729.77

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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.