Home / 510,917.83-705,121.61-281,498.19

Finding the Fourth Proportional to 510,917.83, 705,121.61 and 281,498.19

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Solution

The fourth proportional to 510,917.83, 705,121.61 and 281,498.19 is: 388,497.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,917.83 : 705,121.61 = 281,498.19 : x
  2. Step 2: Convert to fraction form
    510,917.83/705,121.61 = 281,498.19/x
  3. Step 3: Cross multiply
    510,917.83x = 705,121.61 × 281,498.19
  4. Step 4: Simplify right side
    510,917.83x = 198,490,452,893.19
  5. Step 5: Solve for x
    x = 198,490,452,893.19/510,917.83
  6. Step 6: Final answer
    x = 388,497.80

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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.