Home / 714,224.17-985,590.09-391,908.82

Finding the Fourth Proportional to 714,224.17, 985,590.09 and 391,908.82

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Solution

The fourth proportional to 714,224.17, 985,590.09 and 391,908.82 is: 540,812.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,224.17 : 985,590.09 = 391,908.82 : x
  2. Step 2: Convert to fraction form
    714,224.17/985,590.09 = 391,908.82/x
  3. Step 3: Cross multiply
    714,224.17x = 985,590.09 × 391,908.82
  4. Step 4: Simplify right side
    714,224.17x = 386,261,449,175.59
  5. Step 5: Solve for x
    x = 386,261,449,175.59/714,224.17
  6. Step 6: Final answer
    x = 540,812.63

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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.