Home / 566,558.64-781,822.80-311,904.36

Finding the Fourth Proportional to 566,558.64, 781,822.80 and 311,904.36

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Solution

The fourth proportional to 566,558.64, 781,822.80 and 311,904.36 is: 430,412.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,558.64 : 781,822.80 = 311,904.36 : x
  2. Step 2: Convert to fraction form
    566,558.64/781,822.80 = 311,904.36/x
  3. Step 3: Cross multiply
    566,558.64x = 781,822.80 × 311,904.36
  4. Step 4: Simplify right side
    566,558.64x = 243,853,940,067.41
  5. Step 5: Solve for x
    x = 243,853,940,067.41/566,558.64
  6. Step 6: Final answer
    x = 430,412.53

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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.