Home / 677,564.41-935,015.38-375,786.49

Finding the Fourth Proportional to 677,564.41, 935,015.38 and 375,786.49

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Solution

The fourth proportional to 677,564.41, 935,015.38 and 375,786.49 is: 518,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,564.41 : 935,015.38 = 375,786.49 : x
  2. Step 2: Convert to fraction form
    677,564.41/935,015.38 = 375,786.49/x
  3. Step 3: Cross multiply
    677,564.41x = 935,015.38 × 375,786.49
  4. Step 4: Simplify right side
    677,564.41x = 351,366,147,746.22
  5. Step 5: Solve for x
    x = 351,366,147,746.22/677,564.41
  6. Step 6: Final answer
    x = 518,572.32

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Double scale
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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.