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Finding the Fourth Proportional to 1,826,209.88, 2,520,178.27 and 1,021,393.88

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Solution

The fourth proportional to 1,826,209.88, 2,520,178.27 and 1,021,393.88 is: 1,409,528.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826,209.88 : 2,520,178.27 = 1,021,393.88 : x
  2. Step 2: Convert to fraction form
    1,826,209.88/2,520,178.27 = 1,021,393.88/x
  3. Step 3: Cross multiply
    1,826,209.88x = 2,520,178.27 × 1,021,393.88
  4. Step 4: Simplify right side
    1,826,209.88x = 2,574,094,646,332.61
  5. Step 5: Solve for x
    x = 2,574,094,646,332.61/1,826,209.88
  6. Step 6: Final answer
    x = 1,409,528.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.