Home / 1,929,056.80-2,660,562.48-1,240,807.72

Finding the Fourth Proportional to 1,929,056.80, 2,660,562.48 and 1,240,807.72

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Solution

The fourth proportional to 1,929,056.80, 2,660,562.48 and 1,240,807.72 is: 1,711,326.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,929,056.80 : 2,660,562.48 = 1,240,807.72 : x
  2. Step 2: Convert to fraction form
    1,929,056.80/2,660,562.48 = 1,240,807.72/x
  3. Step 3: Cross multiply
    1,929,056.80x = 2,660,562.48 × 1,240,807.72
  4. Step 4: Simplify right side
    1,929,056.80x = 3,301,246,464,726.35
  5. Step 5: Solve for x
    x = 3,301,246,464,726.35/1,929,056.80
  6. Step 6: Final answer
    x = 1,711,326.73

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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.