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Finding the Fourth Proportional to 330,655.28, 495,908.40 and 93,992.72

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Solution

The fourth proportional to 330,655.28, 495,908.40 and 93,992.72 is: 140,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,655.28 : 495,908.40 = 93,992.72 : x
  2. Step 2: Convert to fraction form
    330,655.28/495,908.40 = 93,992.72/x
  3. Step 3: Cross multiply
    330,655.28x = 495,908.40 × 93,992.72
  4. Step 4: Simplify right side
    330,655.28x = 46,611,779,386.85
  5. Step 5: Solve for x
    x = 46,611,779,386.85/330,655.28
  6. Step 6: Final answer
    x = 140,967.90

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1.5x scale

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.