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Finding the Fourth Proportional to 659,601.40, 986,449.62 and 553,313.20

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Solution

The fourth proportional to 659,601.40, 986,449.62 and 553,313.20 is: 827,493.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,601.40 : 986,449.62 = 553,313.20 : x
  2. Step 2: Convert to fraction form
    659,601.40/986,449.62 = 553,313.20/x
  3. Step 3: Cross multiply
    659,601.40x = 986,449.62 × 553,313.20
  4. Step 4: Simplify right side
    659,601.40x = 545,815,595,880.98
  5. Step 5: Solve for x
    x = 545,815,595,880.98/659,601.40
  6. Step 6: Final answer
    x = 827,493.08

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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.