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Finding the Fourth Proportional to 330,316.80, 495,475.20 and 330,316.80

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Solution

The fourth proportional to 330,316.80, 495,475.20 and 330,316.80 is: 495,475.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,316.80 : 495,475.20 = 330,316.80 : x
  2. Step 2: Convert to fraction form
    330,316.80/495,475.20 = 330,316.80/x
  3. Step 3: Cross multiply
    330,316.80x = 495,475.20 × 330,316.80
  4. Step 4: Simplify right side
    330,316.80x = 163,663,782,543.36
  5. Step 5: Solve for x
    x = 163,663,782,543.36/330,316.80
  6. Step 6: Final answer
    x = 495,475.20

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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.