Home / 1,338,663.70-2,005,043.10-805,254.40

Finding the Fourth Proportional to 1,338,663.70, 2,005,043.10 and 805,254.40

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Solution

The fourth proportional to 1,338,663.70, 2,005,043.10 and 805,254.40 is: 1,206,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,663.70 : 2,005,043.10 = 805,254.40 : x
  2. Step 2: Convert to fraction form
    1,338,663.70/2,005,043.10 = 805,254.40/x
  3. Step 3: Cross multiply
    1,338,663.70x = 2,005,043.10 × 805,254.40
  4. Step 4: Simplify right side
    1,338,663.70x = 1,614,569,778,464.64
  5. Step 5: Solve for x
    x = 1,614,569,778,464.64/1,338,663.70
  6. Step 6: Final answer
    x = 1,206,105.60

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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.