Home / 663,608.20-915,739.86-377,088.52

Finding the Fourth Proportional to 663,608.20, 915,739.86 and 377,088.52

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Solution

The fourth proportional to 663,608.20, 915,739.86 and 377,088.52 is: 520,359.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,608.20 : 915,739.86 = 377,088.52 : x
  2. Step 2: Convert to fraction form
    663,608.20/915,739.86 = 377,088.52/x
  3. Step 3: Cross multiply
    663,608.20x = 915,739.86 × 377,088.52
  4. Step 4: Simplify right side
    663,608.20x = 345,314,988,512.41
  5. Step 5: Solve for x
    x = 345,314,988,512.41/663,608.20
  6. Step 6: Final answer
    x = 520,359.74

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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.