Home / 571,005.40-856,521.78-191,931.64

Finding the Fourth Proportional to 571,005.40, 856,521.78 and 191,931.64

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Solution

The fourth proportional to 571,005.40, 856,521.78 and 191,931.64 is: 287,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,005.40 : 856,521.78 = 191,931.64 : x
  2. Step 2: Convert to fraction form
    571,005.40/856,521.78 = 191,931.64/x
  3. Step 3: Cross multiply
    571,005.40x = 856,521.78 × 191,931.64
  4. Step 4: Simplify right side
    571,005.40x = 164,393,629,931.12
  5. Step 5: Solve for x
    x = 164,393,629,931.12/571,005.40
  6. Step 6: Final answer
    x = 287,902.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.