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Finding the Fourth Proportional to 341,938.80, 512,908.20 and 302,572.80

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Solution

The fourth proportional to 341,938.80, 512,908.20 and 302,572.80 is: 453,859.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,938.80 : 512,908.20 = 302,572.80 : x
  2. Step 2: Convert to fraction form
    341,938.80/512,908.20 = 302,572.80/x
  3. Step 3: Cross multiply
    341,938.80x = 512,908.20 × 302,572.80
  4. Step 4: Simplify right side
    341,938.80x = 155,192,070,216.96
  5. Step 5: Solve for x
    x = 155,192,070,216.96/341,938.80
  6. Step 6: Final answer
    x = 453,859.20

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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.