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Finding the Fourth Proportional to 483,138.84, 666,793.12 and 292,153.60

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Solution

The fourth proportional to 483,138.84, 666,793.12 and 292,153.60 is: 403,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,138.84 : 666,793.12 = 292,153.60 : x
  2. Step 2: Convert to fraction form
    483,138.84/666,793.12 = 292,153.60/x
  3. Step 3: Cross multiply
    483,138.84x = 666,793.12 × 292,153.60
  4. Step 4: Simplify right side
    483,138.84x = 194,806,010,463.23
  5. Step 5: Solve for x
    x = 194,806,010,463.23/483,138.84
  6. Step 6: Final answer
    x = 403,209.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.