Home / 649,123.70-973,685.55-383,011.70

Finding the Fourth Proportional to 649,123.70, 973,685.55 and 383,011.70

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Solution

The fourth proportional to 649,123.70, 973,685.55 and 383,011.70 is: 574,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,123.70 : 973,685.55 = 383,011.70 : x
  2. Step 2: Convert to fraction form
    649,123.70/973,685.55 = 383,011.70/x
  3. Step 3: Cross multiply
    649,123.70x = 973,685.55 × 383,011.70
  4. Step 4: Simplify right side
    649,123.70x = 372,932,957,770.94
  5. Step 5: Solve for x
    x = 372,932,957,770.94/649,123.70
  6. Step 6: Final answer
    x = 574,517.55

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Half scale
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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.