Home / 237,684.41-328,005.64-128,788.72

Finding the Fourth Proportional to 237,684.41, 328,005.64 and 128,788.72

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Solution

The fourth proportional to 237,684.41, 328,005.64 and 128,788.72 is: 177,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,684.41 : 328,005.64 = 128,788.72 : x
  2. Step 2: Convert to fraction form
    237,684.41/328,005.64 = 128,788.72/x
  3. Step 3: Cross multiply
    237,684.41x = 328,005.64 × 128,788.72
  4. Step 4: Simplify right side
    237,684.41x = 42,243,426,989.95
  5. Step 5: Solve for x
    x = 42,243,426,989.95/237,684.41
  6. Step 6: Final answer
    x = 177,729.06

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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.