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Finding the Fourth Proportional to 1,769,607.40, 2,653,763.10 and 571,844.20

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Solution

The fourth proportional to 1,769,607.40, 2,653,763.10 and 571,844.20 is: 857,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,769,607.40 : 2,653,763.10 = 571,844.20 : x
  2. Step 2: Convert to fraction form
    1,769,607.40/2,653,763.10 = 571,844.20/x
  3. Step 3: Cross multiply
    1,769,607.40x = 2,653,763.10 × 571,844.20
  4. Step 4: Simplify right side
    1,769,607.40x = 1,517,539,036,909.02
  5. Step 5: Solve for x
    x = 1,517,539,036,909.02/1,769,607.40
  6. Step 6: Final answer
    x = 857,556.90

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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.