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Finding the Fourth Proportional to 330,424.40, 495,636.60 and 237,803.60

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Solution

The fourth proportional to 330,424.40, 495,636.60 and 237,803.60 is: 356,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,424.40 : 495,636.60 = 237,803.60 : x
  2. Step 2: Convert to fraction form
    330,424.40/495,636.60 = 237,803.60/x
  3. Step 3: Cross multiply
    330,424.40x = 495,636.60 × 237,803.60
  4. Step 4: Simplify right side
    330,424.40x = 117,864,167,771.76
  5. Step 5: Solve for x
    x = 117,864,167,771.76/330,424.40
  6. Step 6: Final answer
    x = 356,705.40

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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.