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Finding the Fourth Proportional to 563,011.40, 844,661.10 and 397,123.40

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Solution

The fourth proportional to 563,011.40, 844,661.10 and 397,123.40 is: 595,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,011.40 : 844,661.10 = 397,123.40 : x
  2. Step 2: Convert to fraction form
    563,011.40/844,661.10 = 397,123.40/x
  3. Step 3: Cross multiply
    563,011.40x = 844,661.10 × 397,123.40
  4. Step 4: Simplify right side
    563,011.40x = 335,434,687,879.74
  5. Step 5: Solve for x
    x = 335,434,687,879.74/563,011.40
  6. Step 6: Final answer
    x = 595,786.67

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Double scale
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Similar ratio
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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.