Home / 717,836.06-990,657.96-395,546.10

Finding the Fourth Proportional to 717,836.06, 990,657.96 and 395,546.10

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Solution

The fourth proportional to 717,836.06, 990,657.96 and 395,546.10 is: 545,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,836.06 : 990,657.96 = 395,546.10 : x
  2. Step 2: Convert to fraction form
    717,836.06/990,657.96 = 395,546.10/x
  3. Step 3: Cross multiply
    717,836.06x = 990,657.96 × 395,546.10
  4. Step 4: Simplify right side
    717,836.06x = 391,850,892,511.96
  5. Step 5: Solve for x
    x = 391,850,892,511.96/717,836.06
  6. Step 6: Final answer
    x = 545,877.97

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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.