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Finding the Fourth Proportional to 547,260.60, 820,890.90 and 460,655.40

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Solution

The fourth proportional to 547,260.60, 820,890.90 and 460,655.40 is: 690,983.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,260.60 : 820,890.90 = 460,655.40 : x
  2. Step 2: Convert to fraction form
    547,260.60/820,890.90 = 460,655.40/x
  3. Step 3: Cross multiply
    547,260.60x = 820,890.90 × 460,655.40
  4. Step 4: Simplify right side
    547,260.60x = 378,147,825,895.86
  5. Step 5: Solve for x
    x = 378,147,825,895.86/547,260.60
  6. Step 6: Final answer
    x = 690,983.10

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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.