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Finding the Fourth Proportional to 330,218.70, 495,328.05 and 93,558.30

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Solution

The fourth proportional to 330,218.70, 495,328.05 and 93,558.30 is: 140,337.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,218.70 : 495,328.05 = 93,558.30 : x
  2. Step 2: Convert to fraction form
    330,218.70/495,328.05 = 93,558.30/x
  3. Step 3: Cross multiply
    330,218.70x = 495,328.05 × 93,558.30
  4. Step 4: Simplify right side
    330,218.70x = 46,342,050,300.32
  5. Step 5: Solve for x
    x = 46,342,050,300.32/330,218.70
  6. Step 6: Final answer
    x = 140,337.45

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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.