Home / 1,929,071.80-2,660,583.18-1,240,822.72

Finding the Fourth Proportional to 1,929,071.80, 2,660,583.18 and 1,240,822.72

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Solution

The fourth proportional to 1,929,071.80, 2,660,583.18 and 1,240,822.72 is: 1,711,347.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,071.80 : 2,660,583.18 = 1,240,822.72 : x
  2. Step 2: Convert to fraction form
    1,929,071.80/2,660,583.18 = 1,240,822.72/x
  3. Step 3: Cross multiply
    1,929,071.80x = 2,660,583.18 × 1,240,822.72
  4. Step 4: Simplify right side
    1,929,071.80x = 3,301,312,058,193.85
  5. Step 5: Solve for x
    x = 3,301,312,058,193.85/1,929,071.80
  6. Step 6: Final answer
    x = 1,711,347.43

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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.