Home / 921,300.84-1,270,960.56-539,091

Finding the Fourth Proportional to 921,300.84, 1,270,960.56 and 539,091

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Solution

The fourth proportional to 921,300.84, 1,270,960.56 and 539,091 is: 743,691.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,300.84 : 1,270,960.56 = 539,091 : x
  2. Step 2: Convert to fraction form
    921,300.84/1,270,960.56 = 539,091/x
  3. Step 3: Cross multiply
    921,300.84x = 1,270,960.56 × 539,091
  4. Step 4: Simplify right side
    921,300.84x = 685,163,399,250.96
  5. Step 5: Solve for x
    x = 685,163,399,250.96/921,300.84
  6. Step 6: Final answer
    x = 743,691.28

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1.5x scale

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.