Home / 677,708.13-935,244.45-371,785.05

Finding the Fourth Proportional to 677,708.13, 935,244.45 and 371,785.05

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Solution

The fourth proportional to 677,708.13, 935,244.45 and 371,785.05 is: 513,067.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,708.13 : 935,244.45 = 371,785.05 : x
  2. Step 2: Convert to fraction form
    677,708.13/935,244.45 = 371,785.05/x
  3. Step 3: Cross multiply
    677,708.13x = 935,244.45 × 371,785.05
  4. Step 4: Simplify right side
    677,708.13x = 347,709,904,605.47
  5. Step 5: Solve for x
    x = 347,709,904,605.47/677,708.13
  6. Step 6: Final answer
    x = 513,067.34

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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.