Home / 857,066.88-1,285,081.76-383,664

Finding the Fourth Proportional to 857,066.88, 1,285,081.76 and 383,664

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Solution

The fourth proportional to 857,066.88, 1,285,081.76 and 383,664 is: 575,263.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,066.88 : 1,285,081.76 = 383,664 : x
  2. Step 2: Convert to fraction form
    857,066.88/1,285,081.76 = 383,664/x
  3. Step 3: Cross multiply
    857,066.88x = 1,285,081.76 × 383,664
  4. Step 4: Simplify right side
    857,066.88x = 493,039,608,368.64
  5. Step 5: Solve for x
    x = 493,039,608,368.64/857,066.88
  6. Step 6: Final answer
    x = 575,263.87

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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.