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Finding the Fourth Proportional to 533,322.40, 800,905.20 and 284,490.40

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Solution

The fourth proportional to 533,322.40, 800,905.20 and 284,490.40 is: 427,227.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,322.40 : 800,905.20 = 284,490.40 : x
  2. Step 2: Convert to fraction form
    533,322.40/800,905.20 = 284,490.40/x
  3. Step 3: Cross multiply
    533,322.40x = 800,905.20 × 284,490.40
  4. Step 4: Simplify right side
    533,322.40x = 227,849,840,710.08
  5. Step 5: Solve for x
    x = 227,849,840,710.08/533,322.40
  6. Step 6: Final answer
    x = 427,227.21

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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.