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Finding the Fourth Proportional to 1,064,743.80, 1,597,115.70 and 826,798.20

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Solution

The fourth proportional to 1,064,743.80, 1,597,115.70 and 826,798.20 is: 1,240,197.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064,743.80 : 1,597,115.70 = 826,798.20 : x
  2. Step 2: Convert to fraction form
    1,064,743.80/1,597,115.70 = 826,798.20/x
  3. Step 3: Cross multiply
    1,064,743.80x = 1,597,115.70 × 826,798.20
  4. Step 4: Simplify right side
    1,064,743.80x = 1,320,492,385,951.74
  5. Step 5: Solve for x
    x = 1,320,492,385,951.74/1,064,743.80
  6. Step 6: Final answer
    x = 1,240,197.30

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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.