Home / 763,858.72-1,054,132.24-419,701.84

Finding the Fourth Proportional to 763,858.72, 1,054,132.24 and 419,701.84

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Solution

The fourth proportional to 763,858.72, 1,054,132.24 and 419,701.84 is: 579,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,858.72 : 1,054,132.24 = 419,701.84 : x
  2. Step 2: Convert to fraction form
    763,858.72/1,054,132.24 = 419,701.84/x
  3. Step 3: Cross multiply
    763,858.72x = 1,054,132.24 × 419,701.84
  4. Step 4: Simplify right side
    763,858.72x = 442,421,240,731.32
  5. Step 5: Solve for x
    x = 442,421,240,731.32/763,858.72
  6. Step 6: Final answer
    x = 579,192.50

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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.